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Finding the Third Proportional to 29.43 and 63.12

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Solution

The third proportional to 29.43 and 63.12 is: 135.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.43 : 63.12 = 63.12 : x
  2. Step 2: Convert to fraction form
    29.43/63.12 = 63.12/x
  3. Step 3: Cross multiply
    29.43x = 63.12 × 63.12
  4. Step 4: Simplify right side
    29.43x = 3,984.52
  5. Step 5: Solve for x
    x = 3,984.52/29.43
  6. Step 6: Final answer
    x = 135.41

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.