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Finding the Fourth Proportional to 633.69, 950.55 and 171.54

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Solution

The fourth proportional to 633.69, 950.55 and 171.54 is: 257.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.69 : 950.55 = 171.54 : x
  2. Step 2: Convert to fraction form
    633.69/950.55 = 171.54/x
  3. Step 3: Cross multiply
    633.69x = 950.55 × 171.54
  4. Step 4: Simplify right side
    633.69x = 163,057.35
  5. Step 5: Solve for x
    x = 163,057.35/633.69
  6. Step 6: Final answer
    x = 257.31

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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.