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Finding the Fourth Proportional to 241.54, 333.31 and 143.34

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Solution

The fourth proportional to 241.54, 333.31 and 143.34 is: 197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.54 : 333.31 = 143.34 : x
  2. Step 2: Convert to fraction form
    241.54/333.31 = 143.34/x
  3. Step 3: Cross multiply
    241.54x = 333.31 × 143.34
  4. Step 4: Simplify right side
    241.54x = 47,776.66
  5. Step 5: Solve for x
    x = 47,776.66/241.54
  6. Step 6: Final answer
    x = 197.80

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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.