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Finding the Third Proportional to 161,015 and 353,902

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Solution

The third proportional to 161,015 and 353,902 is: 777,856.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,015 : 353,902 = 353,902 : x
  2. Step 2: Convert to fraction form
    161,015/353,902 = 353,902/x
  3. Step 3: Cross multiply
    161,015x = 353,902 × 353,902
  4. Step 4: Simplify right side
    161,015x = 125,246,625,604
  5. Step 5: Solve for x
    x = 125,246,625,604/161,015
  6. Step 6: Final answer
    x = 777,856.88

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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.