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Finding the Fourth Proportional to 241.64, 331.63 and 222.20

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Solution

The fourth proportional to 241.64, 331.63 and 222.20 is: 304.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.64 : 331.63 = 222.20 : x
  2. Step 2: Convert to fraction form
    241.64/331.63 = 222.20/x
  3. Step 3: Cross multiply
    241.64x = 331.63 × 222.20
  4. Step 4: Simplify right side
    241.64x = 73,688.19
  5. Step 5: Solve for x
    x = 73,688.19/241.64
  6. Step 6: Final answer
    x = 304.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.