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Finding the Fourth Proportional to 402.53, 603.43 and 159

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Solution

The fourth proportional to 402.53, 603.43 and 159 is: 238.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.53 : 603.43 = 159 : x
  2. Step 2: Convert to fraction form
    402.53/603.43 = 159/x
  3. Step 3: Cross multiply
    402.53x = 603.43 × 159
  4. Step 4: Simplify right side
    402.53x = 95,945.37
  5. Step 5: Solve for x
    x = 95,945.37/402.53
  6. Step 6: Final answer
    x = 238.36

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