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Finding the Fourth Proportional to 291, 436.37 and 108.39

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Solution

The fourth proportional to 291, 436.37 and 108.39 is: 162.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    291 : 436.37 = 108.39 : x
  2. Step 2: Convert to fraction form
    291/436.37 = 108.39/x
  3. Step 3: Cross multiply
    291x = 436.37 × 108.39
  4. Step 4: Simplify right side
    291x = 47,297.60
  5. Step 5: Solve for x
    x = 47,297.60/291
  6. Step 6: Final answer
    x = 162.53

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