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Finding the Fourth Proportional to 357.14, 535.79 and 140.72

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Solution

The fourth proportional to 357.14, 535.79 and 140.72 is: 211.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.14 : 535.79 = 140.72 : x
  2. Step 2: Convert to fraction form
    357.14/535.79 = 140.72/x
  3. Step 3: Cross multiply
    357.14x = 535.79 × 140.72
  4. Step 4: Simplify right side
    357.14x = 75,396.37
  5. Step 5: Solve for x
    x = 75,396.37/357.14
  6. Step 6: Final answer
    x = 211.11

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