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Finding the Fourth Proportional to 268.77, 401.01 and 223.41

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Solution

The fourth proportional to 268.77, 401.01 and 223.41 is: 333.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.77 : 401.01 = 223.41 : x
  2. Step 2: Convert to fraction form
    268.77/401.01 = 223.41/x
  3. Step 3: Cross multiply
    268.77x = 401.01 × 223.41
  4. Step 4: Simplify right side
    268.77x = 89,589.64
  5. Step 5: Solve for x
    x = 89,589.64/268.77
  6. Step 6: Final answer
    x = 333.33

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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.