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Finding the Fourth Proportional to 493.41, 739.90 and 168.60

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Solution

The fourth proportional to 493.41, 739.90 and 168.60 is: 252.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.41 : 739.90 = 168.60 : x
  2. Step 2: Convert to fraction form
    493.41/739.90 = 168.60/x
  3. Step 3: Cross multiply
    493.41x = 739.90 × 168.60
  4. Step 4: Simplify right side
    493.41x = 124,747.14
  5. Step 5: Solve for x
    x = 124,747.14/493.41
  6. Step 6: Final answer
    x = 252.83

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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.