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Finding the Third Proportional to 170,378 and 267,287

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Solution

The third proportional to 170,378 and 267,287 is: 419,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,378 : 267,287 = 267,287 : x
  2. Step 2: Convert to fraction form
    170,378/267,287 = 267,287/x
  3. Step 3: Cross multiply
    170,378x = 267,287 × 267,287
  4. Step 4: Simplify right side
    170,378x = 71,442,340,369
  5. Step 5: Solve for x
    x = 71,442,340,369/170,378
  6. Step 6: Final answer
    x = 419,316.70

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.