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Finding the Third Proportional to 54 and 111.38

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Solution

The third proportional to 54 and 111.38 is: 229.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    54 : 111.38 = 111.38 : x
  2. Step 2: Convert to fraction form
    54/111.38 = 111.38/x
  3. Step 3: Cross multiply
    54x = 111.38 × 111.38
  4. Step 4: Simplify right side
    54x = 12,404.39
  5. Step 5: Solve for x
    x = 12,404.39/54
  6. Step 6: Final answer
    x = 229.71

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.