Finding the Fourth Proportional to 396,471.87, 546,882.32 and 235,212.75
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Solution
The fourth proportional to 396,471.87, 546,882.32 and 235,212.75 is: 324,445.96
Step by Step Solution
- Step 1: Write the proportion equation
396,471.87 : 546,882.32 = 235,212.75 : x - Step 2: Convert to fraction form
396,471.87/546,882.32 = 235,212.75/x - Step 3: Cross multiply
396,471.87x = 546,882.32 × 235,212.75 - Step 4: Simplify right side
396,471.87x = 128,633,695,001.61 - Step 5: Solve for x
x = 128,633,695,001.61/396,471.87 - Step 6: Final answer
x = 324,445.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.