Finding the Fourth Proportional to 207,972.20, 311,958.30 and 204,861.80
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Solution
The fourth proportional to 207,972.20, 311,958.30 and 204,861.80 is: 307,292.70
Step by Step Solution
- Step 1: Write the proportion equation
207,972.20 : 311,958.30 = 204,861.80 : x - Step 2: Convert to fraction form
207,972.20/311,958.30 = 204,861.80/x - Step 3: Cross multiply
207,972.20x = 311,958.30 × 204,861.80 - Step 4: Simplify right side
207,972.20x = 63,908,338,862.94 - Step 5: Solve for x
x = 63,908,338,862.94/207,972.20 - Step 6: Final answer
x = 307,292.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.