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Finding the Third Proportional to 181,526 and 398,886

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Solution

The third proportional to 181,526 and 398,886 is: 876,513.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,526 : 398,886 = 398,886 : x
  2. Step 2: Convert to fraction form
    181,526/398,886 = 398,886/x
  3. Step 3: Cross multiply
    181,526x = 398,886 × 398,886
  4. Step 4: Simplify right side
    181,526x = 159,110,040,996
  5. Step 5: Solve for x
    x = 159,110,040,996/181,526
  6. Step 6: Final answer
    x = 876,513.78

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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.