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Finding the Fourth Proportional to 423.54, 635.31 and 180.05

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Solution

The fourth proportional to 423.54, 635.31 and 180.05 is: 270.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.54 : 635.31 = 180.05 : x
  2. Step 2: Convert to fraction form
    423.54/635.31 = 180.05/x
  3. Step 3: Cross multiply
    423.54x = 635.31 × 180.05
  4. Step 4: Simplify right side
    423.54x = 114,384.39
  5. Step 5: Solve for x
    x = 114,384.39/423.54
  6. Step 6: Final answer
    x = 270.07

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