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Finding the Fourth Proportional to 241.01, 331.56 and 212.86

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Solution

The fourth proportional to 241.01, 331.56 and 212.86 is: 292.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.01 : 331.56 = 212.86 : x
  2. Step 2: Convert to fraction form
    241.01/331.56 = 212.86/x
  3. Step 3: Cross multiply
    241.01x = 331.56 × 212.86
  4. Step 4: Simplify right side
    241.01x = 70,576.28
  5. Step 5: Solve for x
    x = 70,576.28/241.01
  6. Step 6: Final answer
    x = 292.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.