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Finding the Third Proportional to 441.75 and 663.25

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Solution

The third proportional to 441.75 and 663.25 is: 995.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.75 : 663.25 = 663.25 : x
  2. Step 2: Convert to fraction form
    441.75/663.25 = 663.25/x
  3. Step 3: Cross multiply
    441.75x = 663.25 × 663.25
  4. Step 4: Simplify right side
    441.75x = 439,900.56
  5. Step 5: Solve for x
    x = 439,900.56/441.75
  6. Step 6: Final answer
    x = 995.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.