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Finding the Fourth Proportional to 388.36, 582.62 and 183.16

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Solution

The fourth proportional to 388.36, 582.62 and 183.16 is: 274.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    388.36 : 582.62 = 183.16 : x
  2. Step 2: Convert to fraction form
    388.36/582.62 = 183.16/x
  3. Step 3: Cross multiply
    388.36x = 582.62 × 183.16
  4. Step 4: Simplify right side
    388.36x = 106,712.68
  5. Step 5: Solve for x
    x = 106,712.68/388.36
  6. Step 6: Final answer
    x = 274.78

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