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Finding the Fourth Proportional to 494.44, 741.66 and 278.03

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Solution

The fourth proportional to 494.44, 741.66 and 278.03 is: 417.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.44 : 741.66 = 278.03 : x
  2. Step 2: Convert to fraction form
    494.44/741.66 = 278.03/x
  3. Step 3: Cross multiply
    494.44x = 741.66 × 278.03
  4. Step 4: Simplify right side
    494.44x = 206,204.54
  5. Step 5: Solve for x
    x = 206,204.54/494.44
  6. Step 6: Final answer
    x = 417.05

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