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Finding the Fourth Proportional to 244.96, 367.21 and 129.30

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Solution

The fourth proportional to 244.96, 367.21 and 129.30 is: 193.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.96 : 367.21 = 129.30 : x
  2. Step 2: Convert to fraction form
    244.96/367.21 = 129.30/x
  3. Step 3: Cross multiply
    244.96x = 367.21 × 129.30
  4. Step 4: Simplify right side
    244.96x = 47,479.93
  5. Step 5: Solve for x
    x = 47,479.93/244.96
  6. Step 6: Final answer
    x = 193.83

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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.