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Finding the Third Proportional to 28.39 and 60.48

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Solution

The third proportional to 28.39 and 60.48 is: 128.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28.39 : 60.48 = 60.48 : x
  2. Step 2: Convert to fraction form
    28.39/60.48 = 60.48/x
  3. Step 3: Cross multiply
    28.39x = 60.48 × 60.48
  4. Step 4: Simplify right side
    28.39x = 3,658.27
  5. Step 5: Solve for x
    x = 3,658.27/28.39
  6. Step 6: Final answer
    x = 128.86

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.