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Finding the Third Proportional to 57.38 and 108.94

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Solution

The third proportional to 57.38 and 108.94 is: 206.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57.38 : 108.94 = 108.94 : x
  2. Step 2: Convert to fraction form
    57.38/108.94 = 108.94/x
  3. Step 3: Cross multiply
    57.38x = 108.94 × 108.94
  4. Step 4: Simplify right side
    57.38x = 11,867.38
  5. Step 5: Solve for x
    x = 11,867.38/57.38
  6. Step 6: Final answer
    x = 206.84

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.