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Finding the Third Proportional to 87.84 and 132.84

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Solution

The third proportional to 87.84 and 132.84 is: 200.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87.84 : 132.84 = 132.84 : x
  2. Step 2: Convert to fraction form
    87.84/132.84 = 132.84/x
  3. Step 3: Cross multiply
    87.84x = 132.84 × 132.84
  4. Step 4: Simplify right side
    87.84x = 17,647.46
  5. Step 5: Solve for x
    x = 17,647.46/87.84
  6. Step 6: Final answer
    x = 200.90

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.