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Finding the Third Proportional to 381.38 and 898.17

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Solution

The third proportional to 381.38 and 898.17 is: 2,115.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.38 : 898.17 = 898.17 : x
  2. Step 2: Convert to fraction form
    381.38/898.17 = 898.17/x
  3. Step 3: Cross multiply
    381.38x = 898.17 × 898.17
  4. Step 4: Simplify right side
    381.38x = 806,712.72
  5. Step 5: Solve for x
    x = 806,712.72/381.38
  6. Step 6: Final answer
    x = 2,115.27

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.