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Finding the Fourth Proportional to 240.12, 330.84 and 224.37

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Solution

The fourth proportional to 240.12, 330.84 and 224.37 is: 309.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.12 : 330.84 = 224.37 : x
  2. Step 2: Convert to fraction form
    240.12/330.84 = 224.37/x
  3. Step 3: Cross multiply
    240.12x = 330.84 × 224.37
  4. Step 4: Simplify right side
    240.12x = 74,230.57
  5. Step 5: Solve for x
    x = 74,230.57/240.12
  6. Step 6: Final answer
    x = 309.14

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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.