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Finding the Third Proportional to 87,808 and 193,120

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Solution

The third proportional to 87,808 and 193,120 is: 424,737.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,808 : 193,120 = 193,120 : x
  2. Step 2: Convert to fraction form
    87,808/193,120 = 193,120/x
  3. Step 3: Cross multiply
    87,808x = 193,120 × 193,120
  4. Step 4: Simplify right side
    87,808x = 37,295,334,400
  5. Step 5: Solve for x
    x = 37,295,334,400/87,808
  6. Step 6: Final answer
    x = 424,737.32

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.