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Finding the Third Proportional to 77,868 and 165,456

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Solution

The third proportional to 77,868 and 165,456 is: 351,565.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,868 : 165,456 = 165,456 : x
  2. Step 2: Convert to fraction form
    77,868/165,456 = 165,456/x
  3. Step 3: Cross multiply
    77,868x = 165,456 × 165,456
  4. Step 4: Simplify right side
    77,868x = 27,375,687,936
  5. Step 5: Solve for x
    x = 27,375,687,936/77,868
  6. Step 6: Final answer
    x = 351,565.31

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.