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Finding the Fourth Proportional to 634.39, 951.77 and 268.99

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Solution

The fourth proportional to 634.39, 951.77 and 268.99 is: 403.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.39 : 951.77 = 268.99 : x
  2. Step 2: Convert to fraction form
    634.39/951.77 = 268.99/x
  3. Step 3: Cross multiply
    634.39x = 951.77 × 268.99
  4. Step 4: Simplify right side
    634.39x = 256,016.61
  5. Step 5: Solve for x
    x = 256,016.61/634.39
  6. Step 6: Final answer
    x = 403.56

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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.