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Finding the Fourth Proportional to 257.04, 357.16 and 254

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Solution

The fourth proportional to 257.04, 357.16 and 254 is: 352.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    257.04 : 357.16 = 254 : x
  2. Step 2: Convert to fraction form
    257.04/357.16 = 254/x
  3. Step 3: Cross multiply
    257.04x = 357.16 × 254
  4. Step 4: Simplify right side
    257.04x = 90,718.64
  5. Step 5: Solve for x
    x = 90,718.64/257.04
  6. Step 6: Final answer
    x = 352.94

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