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Finding the Fourth Proportional to 244.80, 339.54 and 238.12

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Solution

The fourth proportional to 244.80, 339.54 and 238.12 is: 330.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.80 : 339.54 = 238.12 : x
  2. Step 2: Convert to fraction form
    244.80/339.54 = 238.12/x
  3. Step 3: Cross multiply
    244.80x = 339.54 × 238.12
  4. Step 4: Simplify right side
    244.80x = 80,851.26
  5. Step 5: Solve for x
    x = 80,851.26/244.80
  6. Step 6: Final answer
    x = 330.27

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.