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Finding the Fourth Proportional to 492.33, 738.31 and 179.89

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Solution

The fourth proportional to 492.33, 738.31 and 179.89 is: 269.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.33 : 738.31 = 179.89 : x
  2. Step 2: Convert to fraction form
    492.33/738.31 = 179.89/x
  3. Step 3: Cross multiply
    492.33x = 738.31 × 179.89
  4. Step 4: Simplify right side
    492.33x = 132,814.59
  5. Step 5: Solve for x
    x = 132,814.59/492.33
  6. Step 6: Final answer
    x = 269.77

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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.