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Finding the Fourth Proportional to 324.06, 447.18 and 176.70

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Solution

The fourth proportional to 324.06, 447.18 and 176.70 is: 243.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.06 : 447.18 = 176.70 : x
  2. Step 2: Convert to fraction form
    324.06/447.18 = 176.70/x
  3. Step 3: Cross multiply
    324.06x = 447.18 × 176.70
  4. Step 4: Simplify right side
    324.06x = 79,016.71
  5. Step 5: Solve for x
    x = 79,016.71/324.06
  6. Step 6: Final answer
    x = 243.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.