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Finding the Third Proportional to 141,909 and 218,189

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Solution

The third proportional to 141,909 and 218,189 is: 335,471.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,909 : 218,189 = 218,189 : x
  2. Step 2: Convert to fraction form
    141,909/218,189 = 218,189/x
  3. Step 3: Cross multiply
    141,909x = 218,189 × 218,189
  4. Step 4: Simplify right side
    141,909x = 47,606,439,721
  5. Step 5: Solve for x
    x = 47,606,439,721/141,909
  6. Step 6: Final answer
    x = 335,471.60

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.