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Finding the Third Proportional to 82.97 and 133.64

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Solution

The third proportional to 82.97 and 133.64 is: 215.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    82.97 : 133.64 = 133.64 : x
  2. Step 2: Convert to fraction form
    82.97/133.64 = 133.64/x
  3. Step 3: Cross multiply
    82.97x = 133.64 × 133.64
  4. Step 4: Simplify right side
    82.97x = 17,859.82
  5. Step 5: Solve for x
    x = 17,859.82/82.97
  6. Step 6: Final answer
    x = 215.26

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.