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Finding the Fourth Proportional to 635.85, 953.94 and 270.45

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Solution

The fourth proportional to 635.85, 953.94 and 270.45 is: 405.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.85 : 953.94 = 270.45 : x
  2. Step 2: Convert to fraction form
    635.85/953.94 = 270.45/x
  3. Step 3: Cross multiply
    635.85x = 953.94 × 270.45
  4. Step 4: Simplify right side
    635.85x = 257,993.07
  5. Step 5: Solve for x
    x = 257,993.07/635.85
  6. Step 6: Final answer
    x = 405.75

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