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Finding the Third Proportional to 207,440 and 313,068

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Solution

The third proportional to 207,440 and 313,068 is: 472,481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,440 : 313,068 = 313,068 : x
  2. Step 2: Convert to fraction form
    207,440/313,068 = 313,068/x
  3. Step 3: Cross multiply
    207,440x = 313,068 × 313,068
  4. Step 4: Simplify right side
    207,440x = 98,011,572,624
  5. Step 5: Solve for x
    x = 98,011,572,624/207,440
  6. Step 6: Final answer
    x = 472,481.55

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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.