Finding the Fourth Proportional to 387,812.52, 581,728.50 and 107,332.20
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Solution
The fourth proportional to 387,812.52, 581,728.50 and 107,332.20 is: 161,000.99
Step by Step Solution
- Step 1: Write the proportion equation
387,812.52 : 581,728.50 = 107,332.20 : x - Step 2: Convert to fraction form
387,812.52/581,728.50 = 107,332.20/x - Step 3: Cross multiply
387,812.52x = 581,728.50 × 107,332.20 - Step 4: Simplify right side
387,812.52x = 62,438,199,707.70 - Step 5: Solve for x
x = 62,438,199,707.70/387,812.52 - Step 6: Final answer
x = 161,000.99
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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.