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Finding the Third Proportional to 181,551 and 398,940

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Solution

The third proportional to 181,551 and 398,940 is: 876,630.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,551 : 398,940 = 398,940 : x
  2. Step 2: Convert to fraction form
    181,551/398,940 = 398,940/x
  3. Step 3: Cross multiply
    181,551x = 398,940 × 398,940
  4. Step 4: Simplify right side
    181,551x = 159,153,123,600
  5. Step 5: Solve for x
    x = 159,153,123,600/181,551
  6. Step 6: Final answer
    x = 876,630.39

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.