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Finding the Fourth Proportional to 357.08, 535.59 and 113.78

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Solution

The fourth proportional to 357.08, 535.59 and 113.78 is: 170.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.08 : 535.59 = 113.78 : x
  2. Step 2: Convert to fraction form
    357.08/535.59 = 113.78/x
  3. Step 3: Cross multiply
    357.08x = 535.59 × 113.78
  4. Step 4: Simplify right side
    357.08x = 60,936.75
  5. Step 5: Solve for x
    x = 60,936.75/357.08
  6. Step 6: Final answer
    x = 170.66

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