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Finding the Fourth Proportional to 491.92, 738 and 167.29

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Solution

The fourth proportional to 491.92, 738 and 167.29 is: 250.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.92 : 738 = 167.29 : x
  2. Step 2: Convert to fraction form
    491.92/738 = 167.29/x
  3. Step 3: Cross multiply
    491.92x = 738 × 167.29
  4. Step 4: Simplify right side
    491.92x = 123,460.02
  5. Step 5: Solve for x
    x = 123,460.02/491.92
  6. Step 6: Final answer
    x = 250.98

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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.