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Finding the Third Proportional to 72 and 134.44

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Solution

The third proportional to 72 and 134.44 is: 251.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72 : 134.44 = 134.44 : x
  2. Step 2: Convert to fraction form
    72/134.44 = 134.44/x
  3. Step 3: Cross multiply
    72x = 134.44 × 134.44
  4. Step 4: Simplify right side
    72x = 18,073.44
  5. Step 5: Solve for x
    x = 18,073.44/72
  6. Step 6: Final answer
    x = 251.02

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.