Finding the Fourth Proportional to 431,724.53, 647,588.42 and 132,203.95
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Solution
The fourth proportional to 431,724.53, 647,588.42 and 132,203.95 is: 198,306.42
Step by Step Solution
- Step 1: Write the proportion equation
431,724.53 : 647,588.42 = 132,203.95 : x - Step 2: Convert to fraction form
431,724.53/647,588.42 = 132,203.95/x - Step 3: Cross multiply
431,724.53x = 647,588.42 × 132,203.95 - Step 4: Simplify right side
431,724.53x = 85,613,745,314.03 - Step 5: Solve for x
x = 85,613,745,314.03/431,724.53 - Step 6: Final answer
x = 198,306.42
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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.