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Finding the Fourth Proportional to 241.31, 332.97 and 143.06

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Solution

The fourth proportional to 241.31, 332.97 and 143.06 is: 197.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.31 : 332.97 = 143.06 : x
  2. Step 2: Convert to fraction form
    241.31/332.97 = 143.06/x
  3. Step 3: Cross multiply
    241.31x = 332.97 × 143.06
  4. Step 4: Simplify right side
    241.31x = 47,633.02
  5. Step 5: Solve for x
    x = 47,633.02/241.31
  6. Step 6: Final answer
    x = 197.40

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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.