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Finding the Fourth Proportional to 239.05, 358.88 and 203.21

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Solution

The fourth proportional to 239.05, 358.88 and 203.21 is: 305.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.05 : 358.88 = 203.21 : x
  2. Step 2: Convert to fraction form
    239.05/358.88 = 203.21/x
  3. Step 3: Cross multiply
    239.05x = 358.88 × 203.21
  4. Step 4: Simplify right side
    239.05x = 72,927.68
  5. Step 5: Solve for x
    x = 72,927.68/239.05
  6. Step 6: Final answer
    x = 305.07

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