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Finding the Third Proportional to 65.17 and 141.68

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Solution

The third proportional to 65.17 and 141.68 is: 308.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65.17 : 141.68 = 141.68 : x
  2. Step 2: Convert to fraction form
    65.17/141.68 = 141.68/x
  3. Step 3: Cross multiply
    65.17x = 141.68 × 141.68
  4. Step 4: Simplify right side
    65.17x = 20,073.13
  5. Step 5: Solve for x
    x = 20,073.13/65.17
  6. Step 6: Final answer
    x = 308.02

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.