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Finding the Fourth Proportional to 393,021.80, 588,171.90 and 235,363.40

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Solution

The fourth proportional to 393,021.80, 588,171.90 and 235,363.40 is: 352,230.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,021.80 : 588,171.90 = 235,363.40 : x
  2. Step 2: Convert to fraction form
    393,021.80/588,171.90 = 235,363.40/x
  3. Step 3: Cross multiply
    393,021.80x = 588,171.90 × 235,363.40
  4. Step 4: Simplify right side
    393,021.80x = 138,434,138,168.46
  5. Step 5: Solve for x
    x = 138,434,138,168.46/393,021.80
  6. Step 6: Final answer
    x = 352,230.18

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