Finding the Fourth Proportional to 471,352.28, 707,139.12 and 155,809.17
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Solution
The fourth proportional to 471,352.28, 707,139.12 and 155,809.17 is: 233,750.35
Step by Step Solution
- Step 1: Write the proportion equation
471,352.28 : 707,139.12 = 155,809.17 : x - Step 2: Convert to fraction form
471,352.28/707,139.12 = 155,809.17/x - Step 3: Cross multiply
471,352.28x = 707,139.12 × 155,809.17 - Step 4: Simplify right side
471,352.28x = 110,178,760,839.31 - Step 5: Solve for x
x = 110,178,760,839.31/471,352.28 - Step 6: Final answer
x = 233,750.35
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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.