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Finding the Third Proportional to 178,608 and 267,720

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Solution

The third proportional to 178,608 and 267,720 is: 401,292.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,608 : 267,720 = 267,720 : x
  2. Step 2: Convert to fraction form
    178,608/267,720 = 267,720/x
  3. Step 3: Cross multiply
    178,608x = 267,720 × 267,720
  4. Step 4: Simplify right side
    178,608x = 71,673,998,400
  5. Step 5: Solve for x
    x = 71,673,998,400/178,608
  6. Step 6: Final answer
    x = 401,292.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.