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Finding the Third Proportional to 267,621.75 and 391,383

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Solution

The third proportional to 267,621.75 and 391,383 is: 572,377.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,621.75 : 391,383 = 391,383 : x
  2. Step 2: Convert to fraction form
    267,621.75/391,383 = 391,383/x
  3. Step 3: Cross multiply
    267,621.75x = 391,383 × 391,383
  4. Step 4: Simplify right side
    267,621.75x = 153,180,652,689
  5. Step 5: Solve for x
    x = 153,180,652,689/267,621.75
  6. Step 6: Final answer
    x = 572,377.44

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.