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Finding the Fourth Proportional to 235.12, 350.18 and 222.64

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Solution

The fourth proportional to 235.12, 350.18 and 222.64 is: 331.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.12 : 350.18 = 222.64 : x
  2. Step 2: Convert to fraction form
    235.12/350.18 = 222.64/x
  3. Step 3: Cross multiply
    235.12x = 350.18 × 222.64
  4. Step 4: Simplify right side
    235.12x = 77,964.08
  5. Step 5: Solve for x
    x = 77,964.08/235.12
  6. Step 6: Final answer
    x = 331.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.