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Finding the Fourth Proportional to 363.27, 544.30 and 218.69

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Solution

The fourth proportional to 363.27, 544.30 and 218.69 is: 327.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.27 : 544.30 = 218.69 : x
  2. Step 2: Convert to fraction form
    363.27/544.30 = 218.69/x
  3. Step 3: Cross multiply
    363.27x = 544.30 × 218.69
  4. Step 4: Simplify right side
    363.27x = 119,032.97
  5. Step 5: Solve for x
    x = 119,032.97/363.27
  6. Step 6: Final answer
    x = 327.67

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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.