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Finding the Fourth Proportional to 241.69, 333.42 and 143.39

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Solution

The fourth proportional to 241.69, 333.42 and 143.39 is: 197.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.69 : 333.42 = 143.39 : x
  2. Step 2: Convert to fraction form
    241.69/333.42 = 143.39/x
  3. Step 3: Cross multiply
    241.69x = 333.42 × 143.39
  4. Step 4: Simplify right side
    241.69x = 47,806.71
  5. Step 5: Solve for x
    x = 47,806.71/241.69
  6. Step 6: Final answer
    x = 197.81

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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.