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Finding the Third Proportional to 80,306 and 117,579

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Solution

The third proportional to 80,306 and 117,579 is: 172,151.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,306 : 117,579 = 117,579 : x
  2. Step 2: Convert to fraction form
    80,306/117,579 = 117,579/x
  3. Step 3: Cross multiply
    80,306x = 117,579 × 117,579
  4. Step 4: Simplify right side
    80,306x = 13,824,821,241
  5. Step 5: Solve for x
    x = 13,824,821,241/80,306
  6. Step 6: Final answer
    x = 172,151.78

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.