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Finding the Fourth Proportional to 394.00, 590.35 and 239.46

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Solution

The fourth proportional to 394.00, 590.35 and 239.46 is: 358.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.00 : 590.35 = 239.46 : x
  2. Step 2: Convert to fraction form
    394.00/590.35 = 239.46/x
  3. Step 3: Cross multiply
    394.00x = 590.35 × 239.46
  4. Step 4: Simplify right side
    394.00x = 141,364.77
  5. Step 5: Solve for x
    x = 141,364.77/394.00
  6. Step 6: Final answer
    x = 358.79

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