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Finding the Third Proportional to 636.25 and 937.25

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Solution

The third proportional to 636.25 and 937.25 is: 1,380.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.25 : 937.25 = 937.25 : x
  2. Step 2: Convert to fraction form
    636.25/937.25 = 937.25/x
  3. Step 3: Cross multiply
    636.25x = 937.25 × 937.25
  4. Step 4: Simplify right side
    636.25x = 878,437.56
  5. Step 5: Solve for x
    x = 878,437.56/636.25
  6. Step 6: Final answer
    x = 1,380.65

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.