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Finding the Third Proportional to 85,018 and 186,812

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Solution

The third proportional to 85,018 and 186,812 is: 410,486.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,018 : 186,812 = 186,812 : x
  2. Step 2: Convert to fraction form
    85,018/186,812 = 186,812/x
  3. Step 3: Cross multiply
    85,018x = 186,812 × 186,812
  4. Step 4: Simplify right side
    85,018x = 34,898,723,344
  5. Step 5: Solve for x
    x = 34,898,723,344/85,018
  6. Step 6: Final answer
    x = 410,486.29

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.