Finding the Fourth Proportional to 381,472.55, 572,287.70 and 125,324.53
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Solution
The fourth proportional to 381,472.55, 572,287.70 and 125,324.53 is: 188,012.71
Step by Step Solution
- Step 1: Write the proportion equation
381,472.55 : 572,287.70 = 125,324.53 : x - Step 2: Convert to fraction form
381,472.55/572,287.70 = 125,324.53/x - Step 3: Cross multiply
381,472.55x = 572,287.70 × 125,324.53 - Step 4: Simplify right side
381,472.55x = 71,721,687,027.28 - Step 5: Solve for x
x = 71,721,687,027.28/381,472.55 - Step 6: Final answer
x = 188,012.71
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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.