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Finding the Third Proportional to 143,338 and 222,691

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Solution

The third proportional to 143,338 and 222,691 is: 345,974.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,338 : 222,691 = 222,691 : x
  2. Step 2: Convert to fraction form
    143,338/222,691 = 222,691/x
  3. Step 3: Cross multiply
    143,338x = 222,691 × 222,691
  4. Step 4: Simplify right side
    143,338x = 49,591,281,481
  5. Step 5: Solve for x
    x = 49,591,281,481/143,338
  6. Step 6: Final answer
    x = 345,974.42

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.