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Finding the Fourth Proportional to 174.93, 240.82 and 131.19

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Solution

The fourth proportional to 174.93, 240.82 and 131.19 is: 180.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.93 : 240.82 = 131.19 : x
  2. Step 2: Convert to fraction form
    174.93/240.82 = 131.19/x
  3. Step 3: Cross multiply
    174.93x = 240.82 × 131.19
  4. Step 4: Simplify right side
    174.93x = 31,592.85
  5. Step 5: Solve for x
    x = 31,592.85/174.93
  6. Step 6: Final answer
    x = 180.60

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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.