1. What is the Proportionality Factor?

The Proportionality Factor (KG) is defined as the rate of change of population in the Geometric Increase Method. It represents the constant growth rate between two census periods.

2. How Does the Calculator Work?

The calculator uses the Proportionality Factor formula:

Where:

• \( KG \) — Proportionality Factor
• \( PM \) — Population at Mid Year Census
• \( PE \) — Population at Earlier Census
• \( TM \) — Mid-Year Census Date
• \( TE \) — Earlier Census Date

Explanation: The formula calculates the rate of population change using logarithmic transformation to handle exponential growth patterns.

3. Importance of Proportionality Factor

Details: The Proportionality Factor is crucial for population forecasting and demographic analysis. It helps in predicting future population growth patterns and planning for urban development, resource allocation, and infrastructure needs.

4. Using the Calculator

Tips: Enter population values in people, census dates in years. All values must be valid (population > 0, TM > TE).

5. Frequently Asked Questions (FAQ)

Q1: What is the Geometric Increase Method?
A: The Geometric Increase Method assumes that population growth follows a geometric progression, where the population increases at a constant rate over time.

Q2: When should I use this method?
A: This method is suitable for populations experiencing steady exponential growth, typically in developing areas or rapidly growing cities.

Q3: What are typical KG values?
A: KG values vary widely depending on the population and time period. They can range from 0.01 to 0.05 or higher for rapidly growing populations.

Q4: Are there limitations to this method?
A: This method assumes constant growth rate, which may not hold true over very long periods or during economic/social changes.

Q5: How accurate are the predictions?
A: Accuracy depends on the consistency of growth patterns. Short-term predictions are generally more reliable than long-term forecasts.