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Finding the Fourth Proportional to 241.43, 331.11 and 228.47

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Solution

The fourth proportional to 241.43, 331.11 and 228.47 is: 313.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.43 : 331.11 = 228.47 : x
  2. Step 2: Convert to fraction form
    241.43/331.11 = 228.47/x
  3. Step 3: Cross multiply
    241.43x = 331.11 × 228.47
  4. Step 4: Simplify right side
    241.43x = 75,647.05
  5. Step 5: Solve for x
    x = 75,647.05/241.43
  6. Step 6: Final answer
    x = 313.34

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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.