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Finding the Third Proportional to 381.19 and 827.44

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Solution

The third proportional to 381.19 and 827.44 is: 1,796.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.19 : 827.44 = 827.44 : x
  2. Step 2: Convert to fraction form
    381.19/827.44 = 827.44/x
  3. Step 3: Cross multiply
    381.19x = 827.44 × 827.44
  4. Step 4: Simplify right side
    381.19x = 684,652.82
  5. Step 5: Solve for x
    x = 684,652.82/381.19
  6. Step 6: Final answer
    x = 1,796.11

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.