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Finding the Third Proportional to 207,930 and 313,374

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Solution

The third proportional to 207,930 and 313,374 is: 472,290.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,930 : 313,374 = 313,374 : x
  2. Step 2: Convert to fraction form
    207,930/313,374 = 313,374/x
  3. Step 3: Cross multiply
    207,930x = 313,374 × 313,374
  4. Step 4: Simplify right side
    207,930x = 98,203,263,876
  5. Step 5: Solve for x
    x = 98,203,263,876/207,930
  6. Step 6: Final answer
    x = 472,290.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.