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Finding the Third Proportional to 80,620 and 167,857

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Solution

The third proportional to 80,620 and 167,857 is: 349,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,620 : 167,857 = 167,857 : x
  2. Step 2: Convert to fraction form
    80,620/167,857 = 167,857/x
  3. Step 3: Cross multiply
    80,620x = 167,857 × 167,857
  4. Step 4: Simplify right side
    80,620x = 28,175,972,449
  5. Step 5: Solve for x
    x = 28,175,972,449/80,620
  6. Step 6: Final answer
    x = 349,491.10

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.