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Finding the Fourth Proportional to 439.06, 605.56 and 281.52

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Solution

The fourth proportional to 439.06, 605.56 and 281.52 is: 388.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.06 : 605.56 = 281.52 : x
  2. Step 2: Convert to fraction form
    439.06/605.56 = 281.52/x
  3. Step 3: Cross multiply
    439.06x = 605.56 × 281.52
  4. Step 4: Simplify right side
    439.06x = 170,477.25
  5. Step 5: Solve for x
    x = 170,477.25/439.06
  6. Step 6: Final answer
    x = 388.28

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