Finding the Fourth Proportional to 392,034.40, 588,246.18 and 155,371.84
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Solution
The fourth proportional to 392,034.40, 588,246.18 and 155,371.84 is: 233,134.88
Step by Step Solution
- Step 1: Write the proportion equation
392,034.40 : 588,246.18 = 155,371.84 : x - Step 2: Convert to fraction form
392,034.40/588,246.18 = 155,371.84/x - Step 3: Cross multiply
392,034.40x = 588,246.18 × 155,371.84 - Step 4: Simplify right side
392,034.40x = 91,396,891,359.57 - Step 5: Solve for x
x = 91,396,891,359.57/392,034.40 - Step 6: Final answer
x = 233,134.88
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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.