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Finding the Third Proportional to 28.97 and 62.69

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Solution

The third proportional to 28.97 and 62.69 is: 135.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28.97 : 62.69 = 62.69 : x
  2. Step 2: Convert to fraction form
    28.97/62.69 = 62.69/x
  3. Step 3: Cross multiply
    28.97x = 62.69 × 62.69
  4. Step 4: Simplify right side
    28.97x = 3,929.72
  5. Step 5: Solve for x
    x = 3,929.72/28.97
  6. Step 6: Final answer
    x = 135.65

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.