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Finding the Fourth Proportional to 240.66, 360.75 and 118.77

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Solution

The fourth proportional to 240.66, 360.75 and 118.77 is: 178.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.66 : 360.75 = 118.77 : x
  2. Step 2: Convert to fraction form
    240.66/360.75 = 118.77/x
  3. Step 3: Cross multiply
    240.66x = 360.75 × 118.77
  4. Step 4: Simplify right side
    240.66x = 42,846.28
  5. Step 5: Solve for x
    x = 42,846.28/240.66
  6. Step 6: Final answer
    x = 178.04

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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.