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Finding the Fourth Proportional to 388.76, 582.93 and 205.97

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Solution

The fourth proportional to 388.76, 582.93 and 205.97 is: 308.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    388.76 : 582.93 = 205.97 : x
  2. Step 2: Convert to fraction form
    388.76/582.93 = 205.97/x
  3. Step 3: Cross multiply
    388.76x = 582.93 × 205.97
  4. Step 4: Simplify right side
    388.76x = 120,063.18
  5. Step 5: Solve for x
    x = 120,063.18/388.76
  6. Step 6: Final answer
    x = 308.84

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