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Finding the Fourth Proportional to 241.89, 362.86 and 79.57

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Solution

The fourth proportional to 241.89, 362.86 and 79.57 is: 119.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.89 : 362.86 = 79.57 : x
  2. Step 2: Convert to fraction form
    241.89/362.86 = 79.57/x
  3. Step 3: Cross multiply
    241.89x = 362.86 × 79.57
  4. Step 4: Simplify right side
    241.89x = 28,872.65
  5. Step 5: Solve for x
    x = 28,872.65/241.89
  6. Step 6: Final answer
    x = 119.36

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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.