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Finding the Fourth Proportional to 494.72, 741.92 and 165.59

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Solution

The fourth proportional to 494.72, 741.92 and 165.59 is: 248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.72 : 741.92 = 165.59 : x
  2. Step 2: Convert to fraction form
    494.72/741.92 = 165.59/x
  3. Step 3: Cross multiply
    494.72x = 741.92 × 165.59
  4. Step 4: Simplify right side
    494.72x = 122,854.53
  5. Step 5: Solve for x
    x = 122,854.53/494.72
  6. Step 6: Final answer
    x = 248.33

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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.