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Finding the Third Proportional to 62 and 129.88

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Solution

The third proportional to 62 and 129.88 is: 272.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    62 : 129.88 = 129.88 : x
  2. Step 2: Convert to fraction form
    62/129.88 = 129.88/x
  3. Step 3: Cross multiply
    62x = 129.88 × 129.88
  4. Step 4: Simplify right side
    62x = 16,867.52
  5. Step 5: Solve for x
    x = 16,867.52/62
  6. Step 6: Final answer
    x = 272.06

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.