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Finding the Third Proportional to 28.92 and 63.52

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Solution

The third proportional to 28.92 and 63.52 is: 139.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28.92 : 63.52 = 63.52 : x
  2. Step 2: Convert to fraction form
    28.92/63.52 = 63.52/x
  3. Step 3: Cross multiply
    28.92x = 63.52 × 63.52
  4. Step 4: Simplify right side
    28.92x = 4,034.23
  5. Step 5: Solve for x
    x = 4,034.23/28.92
  6. Step 6: Final answer
    x = 139.49

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.