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Finding the Fourth Proportional to 559.44, 839.12 and 266.72

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Solution

The fourth proportional to 559.44, 839.12 and 266.72 is: 400.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.44 : 839.12 = 266.72 : x
  2. Step 2: Convert to fraction form
    559.44/839.12 = 266.72/x
  3. Step 3: Cross multiply
    559.44x = 839.12 × 266.72
  4. Step 4: Simplify right side
    559.44x = 223,812.85
  5. Step 5: Solve for x
    x = 223,812.85/559.44
  6. Step 6: Final answer
    x = 400.07

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