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Finding the Third Proportional to 80,414 and 169,636

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Solution

The third proportional to 80,414 and 169,636 is: 357,852.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,414 : 169,636 = 169,636 : x
  2. Step 2: Convert to fraction form
    80,414/169,636 = 169,636/x
  3. Step 3: Cross multiply
    80,414x = 169,636 × 169,636
  4. Step 4: Simplify right side
    80,414x = 28,776,372,496
  5. Step 5: Solve for x
    x = 28,776,372,496/80,414
  6. Step 6: Final answer
    x = 357,852.77

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.