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Finding the Third Proportional to 120,972 and 181,579

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Solution

The third proportional to 120,972 and 181,579 is: 272,550.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,972 : 181,579 = 181,579 : x
  2. Step 2: Convert to fraction form
    120,972/181,579 = 181,579/x
  3. Step 3: Cross multiply
    120,972x = 181,579 × 181,579
  4. Step 4: Simplify right side
    120,972x = 32,970,933,241
  5. Step 5: Solve for x
    x = 32,970,933,241/120,972
  6. Step 6: Final answer
    x = 272,550.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.