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Finding the Third Proportional to 55,277 and 129,934

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Solution

The third proportional to 55,277 and 129,934 is: 305,422.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,277 : 129,934 = 129,934 : x
  2. Step 2: Convert to fraction form
    55,277/129,934 = 129,934/x
  3. Step 3: Cross multiply
    55,277x = 129,934 × 129,934
  4. Step 4: Simplify right side
    55,277x = 16,882,844,356
  5. Step 5: Solve for x
    x = 16,882,844,356/55,277
  6. Step 6: Final answer
    x = 305,422.59

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.