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Finding the Fourth Proportional to 240.49, 360.87 and 118.84

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Solution

The fourth proportional to 240.49, 360.87 and 118.84 is: 178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.49 : 360.87 = 118.84 : x
  2. Step 2: Convert to fraction form
    240.49/360.87 = 118.84/x
  3. Step 3: Cross multiply
    240.49x = 360.87 × 118.84
  4. Step 4: Simplify right side
    240.49x = 42,885.79
  5. Step 5: Solve for x
    x = 42,885.79/240.49
  6. Step 6: Final answer
    x = 178.33

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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.