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Finding the Third Proportional to 80,687 and 176,926

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Solution

The third proportional to 80,687 and 176,926 is: 387,953.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,687 : 176,926 = 176,926 : x
  2. Step 2: Convert to fraction form
    80,687/176,926 = 176,926/x
  3. Step 3: Cross multiply
    80,687x = 176,926 × 176,926
  4. Step 4: Simplify right side
    80,687x = 31,302,809,476
  5. Step 5: Solve for x
    x = 31,302,809,476/80,687
  6. Step 6: Final answer
    x = 387,953.57

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.