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Finding the Third Proportional to 137,667 and 291,876

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Solution

The third proportional to 137,667 and 291,876 is: 618,823.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,667 : 291,876 = 291,876 : x
  2. Step 2: Convert to fraction form
    137,667/291,876 = 291,876/x
  3. Step 3: Cross multiply
    137,667x = 291,876 × 291,876
  4. Step 4: Simplify right side
    137,667x = 85,191,599,376
  5. Step 5: Solve for x
    x = 85,191,599,376/137,667
  6. Step 6: Final answer
    x = 618,823.68

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.