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Finding the Third Proportional to 181,291 and 398,473

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Solution

The third proportional to 181,291 and 398,473 is: 875,833.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,291 : 398,473 = 398,473 : x
  2. Step 2: Convert to fraction form
    181,291/398,473 = 398,473/x
  3. Step 3: Cross multiply
    181,291x = 398,473 × 398,473
  4. Step 4: Simplify right side
    181,291x = 158,780,731,729
  5. Step 5: Solve for x
    x = 158,780,731,729/181,291
  6. Step 6: Final answer
    x = 875,833.50

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.