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Finding the Fourth Proportional to 634.20, 951.71 and 287.52

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Solution

The fourth proportional to 634.20, 951.71 and 287.52 is: 431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.20 : 951.71 = 287.52 : x
  2. Step 2: Convert to fraction form
    634.20/951.71 = 287.52/x
  3. Step 3: Cross multiply
    634.20x = 951.71 × 287.52
  4. Step 4: Simplify right side
    634.20x = 273,634.22
  5. Step 5: Solve for x
    x = 273,634.22/634.20
  6. Step 6: Final answer
    x = 431.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.