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Finding the Third Proportional to 87,772 and 192,212

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Solution

The third proportional to 87,772 and 192,212 is: 420,925.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,772 : 192,212 = 192,212 : x
  2. Step 2: Convert to fraction form
    87,772/192,212 = 192,212/x
  3. Step 3: Cross multiply
    87,772x = 192,212 × 192,212
  4. Step 4: Simplify right side
    87,772x = 36,945,452,944
  5. Step 5: Solve for x
    x = 36,945,452,944/87,772
  6. Step 6: Final answer
    x = 420,925.27

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.