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Finding the Third Proportional to 251.38 and 513.88

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Solution

The third proportional to 251.38 and 513.88 is: 1,050.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.38 : 513.88 = 513.88 : x
  2. Step 2: Convert to fraction form
    251.38/513.88 = 513.88/x
  3. Step 3: Cross multiply
    251.38x = 513.88 × 513.88
  4. Step 4: Simplify right side
    251.38x = 264,067.52
  5. Step 5: Solve for x
    x = 264,067.52/251.38
  6. Step 6: Final answer
    x = 1,050.49

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.