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Finding the Fourth Proportional to 382.08, 572.64 and 273.12

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Solution

The fourth proportional to 382.08, 572.64 and 273.12 is: 409.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.08 : 572.64 = 273.12 : x
  2. Step 2: Convert to fraction form
    382.08/572.64 = 273.12/x
  3. Step 3: Cross multiply
    382.08x = 572.64 × 273.12
  4. Step 4: Simplify right side
    382.08x = 156,399.44
  5. Step 5: Solve for x
    x = 156,399.44/382.08
  6. Step 6: Final answer
    x = 409.34

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