Finding the Fourth Proportional to 392,123.99, 587,436.10 and 265,141.00
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Solution
The fourth proportional to 392,123.99, 587,436.10 and 265,141.00 is: 397,204.45
Step by Step Solution
- Step 1: Write the proportion equation
392,123.99 : 587,436.10 = 265,141.00 : x - Step 2: Convert to fraction form
392,123.99/587,436.10 = 265,141.00/x - Step 3: Cross multiply
392,123.99x = 587,436.10 × 265,141.00 - Step 4: Simplify right side
392,123.99x = 155,753,391,757.22 - Step 5: Solve for x
x = 155,753,391,757.22/392,123.99 - Step 6: Final answer
x = 397,204.45
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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.