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Finding the Fourth Proportional to 493.29, 739.26 and 168.35

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Solution

The fourth proportional to 493.29, 739.26 and 168.35 is: 252.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.29 : 739.26 = 168.35 : x
  2. Step 2: Convert to fraction form
    493.29/739.26 = 168.35/x
  3. Step 3: Cross multiply
    493.29x = 739.26 × 168.35
  4. Step 4: Simplify right side
    493.29x = 124,450.72
  5. Step 5: Solve for x
    x = 124,450.72/493.29
  6. Step 6: Final answer
    x = 252.29

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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.