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Finding the Fourth Proportional to 314.73, 434.33 and 174.85

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Solution

The fourth proportional to 314.73, 434.33 and 174.85 is: 241.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.73 : 434.33 = 174.85 : x
  2. Step 2: Convert to fraction form
    314.73/434.33 = 174.85/x
  3. Step 3: Cross multiply
    314.73x = 434.33 × 174.85
  4. Step 4: Simplify right side
    314.73x = 75,942.27
  5. Step 5: Solve for x
    x = 75,942.27/314.73
  6. Step 6: Final answer
    x = 241.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.