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Finding the Fourth Proportional to 241.85, 333.72 and 136.91

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Solution

The fourth proportional to 241.85, 333.72 and 136.91 is: 188.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.85 : 333.72 = 136.91 : x
  2. Step 2: Convert to fraction form
    241.85/333.72 = 136.91/x
  3. Step 3: Cross multiply
    241.85x = 333.72 × 136.91
  4. Step 4: Simplify right side
    241.85x = 45,690.44
  5. Step 5: Solve for x
    x = 45,690.44/241.85
  6. Step 6: Final answer
    x = 188.92

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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.