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Finding the Third Proportional to 117.13 and 177.13

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Solution

The third proportional to 117.13 and 177.13 is: 267.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.13 : 177.13 = 177.13 : x
  2. Step 2: Convert to fraction form
    117.13/177.13 = 177.13/x
  3. Step 3: Cross multiply
    117.13x = 177.13 × 177.13
  4. Step 4: Simplify right side
    117.13x = 31,373.27
  5. Step 5: Solve for x
    x = 31,373.27/117.13
  6. Step 6: Final answer
    x = 267.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.