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Finding the Third Proportional to 634.88 and 866.44

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Solution

The third proportional to 634.88 and 866.44 is: 1,182.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.88 : 866.44 = 866.44 : x
  2. Step 2: Convert to fraction form
    634.88/866.44 = 866.44/x
  3. Step 3: Cross multiply
    634.88x = 866.44 × 866.44
  4. Step 4: Simplify right side
    634.88x = 750,713.94
  5. Step 5: Solve for x
    x = 750,713.94/634.88
  6. Step 6: Final answer
    x = 1,182.46

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.