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Finding the Fourth Proportional to 393.19, 589.75 and 119.23

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Solution

The fourth proportional to 393.19, 589.75 and 119.23 is: 178.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    393.19 : 589.75 = 119.23 : x
  2. Step 2: Convert to fraction form
    393.19/589.75 = 119.23/x
  3. Step 3: Cross multiply
    393.19x = 589.75 × 119.23
  4. Step 4: Simplify right side
    393.19x = 70,315.89
  5. Step 5: Solve for x
    x = 70,315.89/393.19
  6. Step 6: Final answer
    x = 178.83

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