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Finding the Third Proportional to 85,469 and 185,517

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Solution

The third proportional to 85,469 and 185,517 is: 402,678.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,469 : 185,517 = 185,517 : x
  2. Step 2: Convert to fraction form
    85,469/185,517 = 185,517/x
  3. Step 3: Cross multiply
    85,469x = 185,517 × 185,517
  4. Step 4: Simplify right side
    85,469x = 34,416,557,289
  5. Step 5: Solve for x
    x = 34,416,557,289/85,469
  6. Step 6: Final answer
    x = 402,678.83

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.