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Finding the Fourth Proportional to 352.53, 528.78 and 109.05

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Solution

The fourth proportional to 352.53, 528.78 and 109.05 is: 163.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    352.53 : 528.78 = 109.05 : x
  2. Step 2: Convert to fraction form
    352.53/528.78 = 109.05/x
  3. Step 3: Cross multiply
    352.53x = 528.78 × 109.05
  4. Step 4: Simplify right side
    352.53x = 57,663.46
  5. Step 5: Solve for x
    x = 57,663.46/352.53
  6. Step 6: Final answer
    x = 163.57

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