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Finding the Fourth Proportional to 633.27, 866.38 and 630.53

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Solution

The fourth proportional to 633.27, 866.38 and 630.53 is: 862.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.27 : 866.38 = 630.53 : x
  2. Step 2: Convert to fraction form
    633.27/866.38 = 630.53/x
  3. Step 3: Cross multiply
    633.27x = 866.38 × 630.53
  4. Step 4: Simplify right side
    633.27x = 546,278.58
  5. Step 5: Solve for x
    x = 546,278.58/633.27
  6. Step 6: Final answer
    x = 862.63

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.