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Finding the Third Proportional to 207,328 and 427,742

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Solution

The third proportional to 207,328 and 427,742 is: 882,481.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,328 : 427,742 = 427,742 : x
  2. Step 2: Convert to fraction form
    207,328/427,742 = 427,742/x
  3. Step 3: Cross multiply
    207,328x = 427,742 × 427,742
  4. Step 4: Simplify right side
    207,328x = 182,963,218,564
  5. Step 5: Solve for x
    x = 182,963,218,564/207,328
  6. Step 6: Final answer
    x = 882,481.95

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.