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Finding the Fourth Proportional to 241.11, 359.74 and 218.12

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Solution

The fourth proportional to 241.11, 359.74 and 218.12 is: 325.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.11 : 359.74 = 218.12 : x
  2. Step 2: Convert to fraction form
    241.11/359.74 = 218.12/x
  3. Step 3: Cross multiply
    241.11x = 359.74 × 218.12
  4. Step 4: Simplify right side
    241.11x = 78,466.49
  5. Step 5: Solve for x
    x = 78,466.49/241.11
  6. Step 6: Final answer
    x = 325.44

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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.