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Finding the Fourth Proportional to 241.89, 362.43 and 138.92

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Solution

The fourth proportional to 241.89, 362.43 and 138.92 is: 208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.89 : 362.43 = 138.92 : x
  2. Step 2: Convert to fraction form
    241.89/362.43 = 138.92/x
  3. Step 3: Cross multiply
    241.89x = 362.43 × 138.92
  4. Step 4: Simplify right side
    241.89x = 50,348.21
  5. Step 5: Solve for x
    x = 50,348.21/241.89
  6. Step 6: Final answer
    x = 208.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.