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Finding the Third Proportional to 109,672 and 239,175

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Solution

The third proportional to 109,672 and 239,175 is: 521,597.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,672 : 239,175 = 239,175 : x
  2. Step 2: Convert to fraction form
    109,672/239,175 = 239,175/x
  3. Step 3: Cross multiply
    109,672x = 239,175 × 239,175
  4. Step 4: Simplify right side
    109,672x = 57,204,680,625
  5. Step 5: Solve for x
    x = 57,204,680,625/109,672
  6. Step 6: Final answer
    x = 521,597.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.