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Finding the Third Proportional to 383.25 and 826.13

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Solution

The third proportional to 383.25 and 826.13 is: 1,780.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.25 : 826.13 = 826.13 : x
  2. Step 2: Convert to fraction form
    383.25/826.13 = 826.13/x
  3. Step 3: Cross multiply
    383.25x = 826.13 × 826.13
  4. Step 4: Simplify right side
    383.25x = 682,482.52
  5. Step 5: Solve for x
    x = 682,482.52/383.25
  6. Step 6: Final answer
    x = 1,780.78

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.