Finding the Fourth Proportional to 486,943.32, 730,414.99 and 131,957.33
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Solution
The fourth proportional to 486,943.32, 730,414.99 and 131,957.33 is: 197,935.99
Step by Step Solution
- Step 1: Write the proportion equation
486,943.32 : 730,414.99 = 131,957.33 : x - Step 2: Convert to fraction form
486,943.32/730,414.99 = 131,957.33/x - Step 3: Cross multiply
486,943.32x = 730,414.99 × 131,957.33 - Step 4: Simplify right side
486,943.32x = 96,383,608,220.30 - Step 5: Solve for x
x = 96,383,608,220.30/486,943.32 - Step 6: Final answer
x = 197,935.99
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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.