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Finding the Third Proportional to 57.88 and 124.90

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Solution

The third proportional to 57.88 and 124.90 is: 269.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57.88 : 124.90 = 124.90 : x
  2. Step 2: Convert to fraction form
    57.88/124.90 = 124.90/x
  3. Step 3: Cross multiply
    57.88x = 124.90 × 124.90
  4. Step 4: Simplify right side
    57.88x = 15,600.35
  5. Step 5: Solve for x
    x = 15,600.35/57.88
  6. Step 6: Final answer
    x = 269.55

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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.