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Finding the Fourth Proportional to 633.28, 949.95 and 325.05

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Solution

The fourth proportional to 633.28, 949.95 and 325.05 is: 487.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.28 : 949.95 = 325.05 : x
  2. Step 2: Convert to fraction form
    633.28/949.95 = 325.05/x
  3. Step 3: Cross multiply
    633.28x = 949.95 × 325.05
  4. Step 4: Simplify right side
    633.28x = 308,781.25
  5. Step 5: Solve for x
    x = 308,781.25/633.28
  6. Step 6: Final answer
    x = 487.59

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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.