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Finding the Third Proportional to 81,439 and 175,190

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Solution

The third proportional to 81,439 and 175,190 is: 376,865.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,439 : 175,190 = 175,190 : x
  2. Step 2: Convert to fraction form
    81,439/175,190 = 175,190/x
  3. Step 3: Cross multiply
    81,439x = 175,190 × 175,190
  4. Step 4: Simplify right side
    81,439x = 30,691,536,100
  5. Step 5: Solve for x
    x = 30,691,536,100/81,439
  6. Step 6: Final answer
    x = 376,865.34

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.