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Finding the Fourth Proportional to 141.33, 211.96 and 118.52

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Solution

The fourth proportional to 141.33, 211.96 and 118.52 is: 177.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.33 : 211.96 = 118.52 : x
  2. Step 2: Convert to fraction form
    141.33/211.96 = 118.52/x
  3. Step 3: Cross multiply
    141.33x = 211.96 × 118.52
  4. Step 4: Simplify right side
    141.33x = 25,121.50
  5. Step 5: Solve for x
    x = 25,121.50/141.33
  6. Step 6: Final answer
    x = 177.75

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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.