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Finding the Fourth Proportional to 480.24, 720.44 and 155.60

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Solution

The fourth proportional to 480.24, 720.44 and 155.60 is: 233.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.24 : 720.44 = 155.60 : x
  2. Step 2: Convert to fraction form
    480.24/720.44 = 155.60/x
  3. Step 3: Cross multiply
    480.24x = 720.44 × 155.60
  4. Step 4: Simplify right side
    480.24x = 112,100.46
  5. Step 5: Solve for x
    x = 112,100.46/480.24
  6. Step 6: Final answer
    x = 233.43

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