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Finding the Fourth Proportional to 424.16, 636.48 and 180.66

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Solution

The fourth proportional to 424.16, 636.48 and 180.66 is: 271.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.16 : 636.48 = 180.66 : x
  2. Step 2: Convert to fraction form
    424.16/636.48 = 180.66/x
  3. Step 3: Cross multiply
    424.16x = 636.48 × 180.66
  4. Step 4: Simplify right side
    424.16x = 114,986.48
  5. Step 5: Solve for x
    x = 114,986.48/424.16
  6. Step 6: Final answer
    x = 271.09

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