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Finding the Third Proportional to 34.97 and 76.31

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Solution

The third proportional to 34.97 and 76.31 is: 166.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.97 : 76.31 = 76.31 : x
  2. Step 2: Convert to fraction form
    34.97/76.31 = 76.31/x
  3. Step 3: Cross multiply
    34.97x = 76.31 × 76.31
  4. Step 4: Simplify right side
    34.97x = 5,823.60
  5. Step 5: Solve for x
    x = 5,823.60/34.97
  6. Step 6: Final answer
    x = 166.54

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.