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Finding the Fourth Proportional to 488.73, 732.02 and 280.02

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Solution

The fourth proportional to 488.73, 732.02 and 280.02 is: 419.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.73 : 732.02 = 280.02 : x
  2. Step 2: Convert to fraction form
    488.73/732.02 = 280.02/x
  3. Step 3: Cross multiply
    488.73x = 732.02 × 280.02
  4. Step 4: Simplify right side
    488.73x = 204,980.24
  5. Step 5: Solve for x
    x = 204,980.24/488.73
  6. Step 6: Final answer
    x = 419.41

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