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Finding the Third Proportional to 158,806 and 339,427

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Solution

The third proportional to 158,806 and 339,427 is: 725,480.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,806 : 339,427 = 339,427 : x
  2. Step 2: Convert to fraction form
    158,806/339,427 = 339,427/x
  3. Step 3: Cross multiply
    158,806x = 339,427 × 339,427
  4. Step 4: Simplify right side
    158,806x = 115,210,688,329
  5. Step 5: Solve for x
    x = 115,210,688,329/158,806
  6. Step 6: Final answer
    x = 725,480.70

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.