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Finding the Fourth Proportional to 400.76, 553 and 226.06

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Solution

The fourth proportional to 400.76, 553 and 226.06 is: 311.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.76 : 553 = 226.06 : x
  2. Step 2: Convert to fraction form
    400.76/553 = 226.06/x
  3. Step 3: Cross multiply
    400.76x = 553 × 226.06
  4. Step 4: Simplify right side
    400.76x = 125,011.18
  5. Step 5: Solve for x
    x = 125,011.18/400.76
  6. Step 6: Final answer
    x = 311.94

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