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Finding the Third Proportional to 87,780 and 194,541

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Solution

The third proportional to 87,780 and 194,541 is: 431,148.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,780 : 194,541 = 194,541 : x
  2. Step 2: Convert to fraction form
    87,780/194,541 = 194,541/x
  3. Step 3: Cross multiply
    87,780x = 194,541 × 194,541
  4. Step 4: Simplify right side
    87,780x = 37,846,200,681
  5. Step 5: Solve for x
    x = 37,846,200,681/87,780
  6. Step 6: Final answer
    x = 431,148.33

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.