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Finding the Third Proportional to 63.28 and 136.41

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Solution

The third proportional to 63.28 and 136.41 is: 294.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.28 : 136.41 = 136.41 : x
  2. Step 2: Convert to fraction form
    63.28/136.41 = 136.41/x
  3. Step 3: Cross multiply
    63.28x = 136.41 × 136.41
  4. Step 4: Simplify right side
    63.28x = 18,606.67
  5. Step 5: Solve for x
    x = 18,606.67/63.28
  6. Step 6: Final answer
    x = 294.03

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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.