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Finding the Third Proportional to 512.75 and 964.75

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Solution

The third proportional to 512.75 and 964.75 is: 1,815.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    512.75 : 964.75 = 964.75 : x
  2. Step 2: Convert to fraction form
    512.75/964.75 = 964.75/x
  3. Step 3: Cross multiply
    512.75x = 964.75 × 964.75
  4. Step 4: Simplify right side
    512.75x = 930,742.56
  5. Step 5: Solve for x
    x = 930,742.56/512.75
  6. Step 6: Final answer
    x = 1,815.20

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Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.