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Finding the Third Proportional to 87,600 and 192,155

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Solution

The third proportional to 87,600 and 192,155 is: 421,501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,600 : 192,155 = 192,155 : x
  2. Step 2: Convert to fraction form
    87,600/192,155 = 192,155/x
  3. Step 3: Cross multiply
    87,600x = 192,155 × 192,155
  4. Step 4: Simplify right side
    87,600x = 36,923,544,025
  5. Step 5: Solve for x
    x = 36,923,544,025/87,600
  6. Step 6: Final answer
    x = 421,501.64

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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.