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Finding the Third Proportional to 200,540 and 267,312

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Solution

The third proportional to 200,540 and 267,312 is: 356,316.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,540 : 267,312 = 267,312 : x
  2. Step 2: Convert to fraction form
    200,540/267,312 = 267,312/x
  3. Step 3: Cross multiply
    200,540x = 267,312 × 267,312
  4. Step 4: Simplify right side
    200,540x = 71,455,705,344
  5. Step 5: Solve for x
    x = 71,455,705,344/200,540
  6. Step 6: Final answer
    x = 356,316.47

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.