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Finding the Third Proportional to 80,136 and 176,268

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Solution

The third proportional to 80,136 and 176,268 is: 387,720.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,136 : 176,268 = 176,268 : x
  2. Step 2: Convert to fraction form
    80,136/176,268 = 176,268/x
  3. Step 3: Cross multiply
    80,136x = 176,268 × 176,268
  4. Step 4: Simplify right side
    80,136x = 31,070,407,824
  5. Step 5: Solve for x
    x = 31,070,407,824/80,136
  6. Step 6: Final answer
    x = 387,720.97

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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.