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Finding the Fourth Proportional to 418.24, 627 and 256.04

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Solution

The fourth proportional to 418.24, 627 and 256.04 is: 383.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    418.24 : 627 = 256.04 : x
  2. Step 2: Convert to fraction form
    418.24/627 = 256.04/x
  3. Step 3: Cross multiply
    418.24x = 627 × 256.04
  4. Step 4: Simplify right side
    418.24x = 160,537.08
  5. Step 5: Solve for x
    x = 160,537.08/418.24
  6. Step 6: Final answer
    x = 383.84

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