Finding the Fourth Proportional to 437,902.17, 656,849.30 and 138,382.80
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Solution
The fourth proportional to 437,902.17, 656,849.30 and 138,382.80 is: 207,572.95
Step by Step Solution
- Step 1: Write the proportion equation
437,902.17 : 656,849.30 = 138,382.80 : x - Step 2: Convert to fraction form
437,902.17/656,849.30 = 138,382.80/x - Step 3: Cross multiply
437,902.17x = 656,849.30 × 138,382.80 - Step 4: Simplify right side
437,902.17x = 90,896,644,620.13 - Step 5: Solve for x
x = 90,896,644,620.13/437,902.17 - Step 6: Final answer
x = 207,572.95
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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.