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Finding the Fourth Proportional to 241.28, 360.12 and 222.05

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Solution

The fourth proportional to 241.28, 360.12 and 222.05 is: 331.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.28 : 360.12 = 222.05 : x
  2. Step 2: Convert to fraction form
    241.28/360.12 = 222.05/x
  3. Step 3: Cross multiply
    241.28x = 360.12 × 222.05
  4. Step 4: Simplify right side
    241.28x = 79,964.65
  5. Step 5: Solve for x
    x = 79,964.65/241.28
  6. Step 6: Final answer
    x = 331.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.