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Finding the Third Proportional to 521.12 and 1,144.76

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Solution

The third proportional to 521.12 and 1,144.76 is: 2,514.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    521.12 : 1,144.76 = 1,144.76 : x
  2. Step 2: Convert to fraction form
    521.12/1,144.76 = 1,144.76/x
  3. Step 3: Cross multiply
    521.12x = 1,144.76 × 1,144.76
  4. Step 4: Simplify right side
    521.12x = 1,310,470.45
  5. Step 5: Solve for x
    x = 1,310,470.45/521.12
  6. Step 6: Final answer
    x = 2,514.71

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.