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Finding the Fourth Proportional to 800.95, 1,201.38 and 223.83

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Solution

The fourth proportional to 800.95, 1,201.38 and 223.83 is: 335.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    800.95 : 1,201.38 = 223.83 : x
  2. Step 2: Convert to fraction form
    800.95/1,201.38 = 223.83/x
  3. Step 3: Cross multiply
    800.95x = 1,201.38 × 223.83
  4. Step 4: Simplify right side
    800.95x = 268,904.89
  5. Step 5: Solve for x
    x = 268,904.89/800.95
  6. Step 6: Final answer
    x = 335.73

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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.