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Finding the Fourth Proportional to 324.06, 485.46 and 169.80

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Solution

The fourth proportional to 324.06, 485.46 and 169.80 is: 254.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.06 : 485.46 = 169.80 : x
  2. Step 2: Convert to fraction form
    324.06/485.46 = 169.80/x
  3. Step 3: Cross multiply
    324.06x = 485.46 × 169.80
  4. Step 4: Simplify right side
    324.06x = 82,431.11
  5. Step 5: Solve for x
    x = 82,431.11/324.06
  6. Step 6: Final answer
    x = 254.37

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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.