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Finding the Fourth Proportional to 288.87, 433.15 and 248.47

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Solution

The fourth proportional to 288.87, 433.15 and 248.47 is: 372.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    288.87 : 433.15 = 248.47 : x
  2. Step 2: Convert to fraction form
    288.87/433.15 = 248.47/x
  3. Step 3: Cross multiply
    288.87x = 433.15 × 248.47
  4. Step 4: Simplify right side
    288.87x = 107,623.08
  5. Step 5: Solve for x
    x = 107,623.08/288.87
  6. Step 6: Final answer
    x = 372.57

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