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Finding the Third Proportional to 87,779 and 171,179

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Solution

The third proportional to 87,779 and 171,179 is: 333,818.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,779 : 171,179 = 171,179 : x
  2. Step 2: Convert to fraction form
    87,779/171,179 = 171,179/x
  3. Step 3: Cross multiply
    87,779x = 171,179 × 171,179
  4. Step 4: Simplify right side
    87,779x = 29,302,250,041
  5. Step 5: Solve for x
    x = 29,302,250,041/87,779
  6. Step 6: Final answer
    x = 333,818.45

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.