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Finding the Third Proportional to 27.29 and 57.19

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Solution

The third proportional to 27.29 and 57.19 is: 119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27.29 : 57.19 = 57.19 : x
  2. Step 2: Convert to fraction form
    27.29/57.19 = 57.19/x
  3. Step 3: Cross multiply
    27.29x = 57.19 × 57.19
  4. Step 4: Simplify right side
    27.29x = 3,270.75
  5. Step 5: Solve for x
    x = 3,270.75/27.29
  6. Step 6: Final answer
    x = 119.85

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.