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Finding the Fourth Proportional to 388.24, 582.18 and 225.98

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Solution

The fourth proportional to 388.24, 582.18 and 225.98 is: 338.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    388.24 : 582.18 = 225.98 : x
  2. Step 2: Convert to fraction form
    388.24/582.18 = 225.98/x
  3. Step 3: Cross multiply
    388.24x = 582.18 × 225.98
  4. Step 4: Simplify right side
    388.24x = 131,561.04
  5. Step 5: Solve for x
    x = 131,561.04/388.24
  6. Step 6: Final answer
    x = 338.87

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