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Finding the Fourth Proportional to 401.52, 553.94 and 226.83

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Solution

The fourth proportional to 401.52, 553.94 and 226.83 is: 312.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.52 : 553.94 = 226.83 : x
  2. Step 2: Convert to fraction form
    401.52/553.94 = 226.83/x
  3. Step 3: Cross multiply
    401.52x = 553.94 × 226.83
  4. Step 4: Simplify right side
    401.52x = 125,649.08
  5. Step 5: Solve for x
    x = 125,649.08/401.52
  6. Step 6: Final answer
    x = 312.93

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