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Finding the Third Proportional to 245,189 and 379,812

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Solution

The third proportional to 245,189 and 379,812 is: 588,350.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,189 : 379,812 = 379,812 : x
  2. Step 2: Convert to fraction form
    245,189/379,812 = 379,812/x
  3. Step 3: Cross multiply
    245,189x = 379,812 × 379,812
  4. Step 4: Simplify right side
    245,189x = 144,257,155,344
  5. Step 5: Solve for x
    x = 144,257,155,344/245,189
  6. Step 6: Final answer
    x = 588,350.85

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.