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Finding the Third Proportional to 197,540 and 313,806

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Solution

The third proportional to 197,540 and 313,806 is: 498,502.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,540 : 313,806 = 313,806 : x
  2. Step 2: Convert to fraction form
    197,540/313,806 = 313,806/x
  3. Step 3: Cross multiply
    197,540x = 313,806 × 313,806
  4. Step 4: Simplify right side
    197,540x = 98,474,205,636
  5. Step 5: Solve for x
    x = 98,474,205,636/197,540
  6. Step 6: Final answer
    x = 498,502.61

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.