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Finding the Third Proportional to 109,372 and 171,349

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Solution

The third proportional to 109,372 and 171,349 is: 268,446.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,372 : 171,349 = 171,349 : x
  2. Step 2: Convert to fraction form
    109,372/171,349 = 171,349/x
  3. Step 3: Cross multiply
    109,372x = 171,349 × 171,349
  4. Step 4: Simplify right side
    109,372x = 29,360,479,801
  5. Step 5: Solve for x
    x = 29,360,479,801/109,372
  6. Step 6: Final answer
    x = 268,446.04

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.