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Finding the Fourth Proportional to 634.58, 951.29 and 325.75

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Solution

The fourth proportional to 634.58, 951.29 and 325.75 is: 488.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.58 : 951.29 = 325.75 : x
  2. Step 2: Convert to fraction form
    634.58/951.29 = 325.75/x
  3. Step 3: Cross multiply
    634.58x = 951.29 × 325.75
  4. Step 4: Simplify right side
    634.58x = 309,882.72
  5. Step 5: Solve for x
    x = 309,882.72/634.58
  6. Step 6: Final answer
    x = 488.33

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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.