Finding the Fourth Proportional to 207,909.20, 311,207.70 and 201,348.20
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Solution
The fourth proportional to 207,909.20, 311,207.70 and 201,348.20 is: 301,386.90
Step by Step Solution
- Step 1: Write the proportion equation
207,909.20 : 311,207.70 = 201,348.20 : x - Step 2: Convert to fraction form
207,909.20/311,207.70 = 201,348.20/x - Step 3: Cross multiply
207,909.20x = 311,207.70 × 201,348.20 - Step 4: Simplify right side
207,909.20x = 62,661,110,221.14 - Step 5: Solve for x
x = 62,661,110,221.14/207,909.20 - Step 6: Final answer
x = 301,386.90
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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.