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Finding the Third Proportional to 80,912 and 177,376

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Solution

The third proportional to 80,912 and 177,376 is: 388,845.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,912 : 177,376 = 177,376 : x
  2. Step 2: Convert to fraction form
    80,912/177,376 = 177,376/x
  3. Step 3: Cross multiply
    80,912x = 177,376 × 177,376
  4. Step 4: Simplify right side
    80,912x = 31,462,245,376
  5. Step 5: Solve for x
    x = 31,462,245,376/80,912
  6. Step 6: Final answer
    x = 388,845.23

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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.