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Finding the Fourth Proportional to 263.60, 394.99 and 222.83

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Solution

The fourth proportional to 263.60, 394.99 and 222.83 is: 333.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.60 : 394.99 = 222.83 : x
  2. Step 2: Convert to fraction form
    263.60/394.99 = 222.83/x
  3. Step 3: Cross multiply
    263.60x = 394.99 × 222.83
  4. Step 4: Simplify right side
    263.60x = 88,015.62
  5. Step 5: Solve for x
    x = 88,015.62/263.60
  6. Step 6: Final answer
    x = 333.90

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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.