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Finding the Fourth Proportional to 240.25, 360.19 and 118.43

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Solution

The fourth proportional to 240.25, 360.19 and 118.43 is: 177.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.25 : 360.19 = 118.43 : x
  2. Step 2: Convert to fraction form
    240.25/360.19 = 118.43/x
  3. Step 3: Cross multiply
    240.25x = 360.19 × 118.43
  4. Step 4: Simplify right side
    240.25x = 42,657.30
  5. Step 5: Solve for x
    x = 42,657.30/240.25
  6. Step 6: Final answer
    x = 177.55

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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.