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Finding the Fourth Proportional to 244.81, 367.26 and 217.90

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Solution

The fourth proportional to 244.81, 367.26 and 217.90 is: 326.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.81 : 367.26 = 217.90 : x
  2. Step 2: Convert to fraction form
    244.81/367.26 = 217.90/x
  3. Step 3: Cross multiply
    244.81x = 367.26 × 217.90
  4. Step 4: Simplify right side
    244.81x = 80,025.95
  5. Step 5: Solve for x
    x = 80,025.95/244.81
  6. Step 6: Final answer
    x = 326.89

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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.