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Finding the Third Proportional to 177,757 and 419,605

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Solution

The third proportional to 177,757 and 419,605 is: 990,500.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,757 : 419,605 = 419,605 : x
  2. Step 2: Convert to fraction form
    177,757/419,605 = 419,605/x
  3. Step 3: Cross multiply
    177,757x = 419,605 × 419,605
  4. Step 4: Simplify right side
    177,757x = 176,068,356,025
  5. Step 5: Solve for x
    x = 176,068,356,025/177,757
  6. Step 6: Final answer
    x = 990,500.27

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.