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Finding the Fourth Proportional to 367.11, 506.68 and 219.74

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Solution

The fourth proportional to 367.11, 506.68 and 219.74 is: 303.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.11 : 506.68 = 219.74 : x
  2. Step 2: Convert to fraction form
    367.11/506.68 = 219.74/x
  3. Step 3: Cross multiply
    367.11x = 506.68 × 219.74
  4. Step 4: Simplify right side
    367.11x = 111,334.78
  5. Step 5: Solve for x
    x = 111,334.78/367.11
  6. Step 6: Final answer
    x = 303.27

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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.