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Finding the Fourth Proportional to 633.47, 950.12 and 171.28

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Solution

The fourth proportional to 633.47, 950.12 and 171.28 is: 256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.47 : 950.12 = 171.28 : x
  2. Step 2: Convert to fraction form
    633.47/950.12 = 171.28/x
  3. Step 3: Cross multiply
    633.47x = 950.12 × 171.28
  4. Step 4: Simplify right side
    633.47x = 162,736.55
  5. Step 5: Solve for x
    x = 162,736.55/633.47
  6. Step 6: Final answer
    x = 256.90

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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.