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Finding the Third Proportional to 247,806 and 344,790

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Solution

The third proportional to 247,806 and 344,790 is: 479,730.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,806 : 344,790 = 344,790 : x
  2. Step 2: Convert to fraction form
    247,806/344,790 = 344,790/x
  3. Step 3: Cross multiply
    247,806x = 344,790 × 344,790
  4. Step 4: Simplify right side
    247,806x = 118,880,144,100
  5. Step 5: Solve for x
    x = 118,880,144,100/247,806
  6. Step 6: Final answer
    x = 479,730.69

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.