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Finding the Fourth Proportional to 241.69, 362.31 and 143.95

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Solution

The fourth proportional to 241.69, 362.31 and 143.95 is: 215.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.69 : 362.31 = 143.95 : x
  2. Step 2: Convert to fraction form
    241.69/362.31 = 143.95/x
  3. Step 3: Cross multiply
    241.69x = 362.31 × 143.95
  4. Step 4: Simplify right side
    241.69x = 52,152.71
  5. Step 5: Solve for x
    x = 52,152.71/241.69
  6. Step 6: Final answer
    x = 215.79

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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.