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Finding the Third Proportional to 87,340 and 131,444

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Solution

The third proportional to 87,340 and 131,444 is: 197,819.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,340 : 131,444 = 131,444 : x
  2. Step 2: Convert to fraction form
    87,340/131,444 = 131,444/x
  3. Step 3: Cross multiply
    87,340x = 131,444 × 131,444
  4. Step 4: Simplify right side
    87,340x = 17,277,525,136
  5. Step 5: Solve for x
    x = 17,277,525,136/87,340
  6. Step 6: Final answer
    x = 197,819.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.