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Finding the Third Proportional to 441.75 and 745.13

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Solution

The third proportional to 441.75 and 745.13 is: 1,256.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.75 : 745.13 = 745.13 : x
  2. Step 2: Convert to fraction form
    441.75/745.13 = 745.13/x
  3. Step 3: Cross multiply
    441.75x = 745.13 × 745.13
  4. Step 4: Simplify right side
    441.75x = 555,211.27
  5. Step 5: Solve for x
    x = 555,211.27/441.75
  6. Step 6: Final answer
    x = 1,256.84

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Why These Related Problems?

These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.