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Finding the Fourth Proportional to 244.68, 367.08 and 86.38

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Solution

The fourth proportional to 244.68, 367.08 and 86.38 is: 129.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.68 : 367.08 = 86.38 : x
  2. Step 2: Convert to fraction form
    244.68/367.08 = 86.38/x
  3. Step 3: Cross multiply
    244.68x = 367.08 × 86.38
  4. Step 4: Simplify right side
    244.68x = 31,708.37
  5. Step 5: Solve for x
    x = 31,708.37/244.68
  6. Step 6: Final answer
    x = 129.59

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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.