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Finding the Third Proportional to 84,132 and 181,380

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Solution

The third proportional to 84,132 and 181,380 is: 391,036.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,132 : 181,380 = 181,380 : x
  2. Step 2: Convert to fraction form
    84,132/181,380 = 181,380/x
  3. Step 3: Cross multiply
    84,132x = 181,380 × 181,380
  4. Step 4: Simplify right side
    84,132x = 32,898,704,400
  5. Step 5: Solve for x
    x = 32,898,704,400/84,132
  6. Step 6: Final answer
    x = 391,036.76

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.