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Finding the Fourth Proportional to 208,268.80, 312,218.88 and 97,431.04

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Solution

The fourth proportional to 208,268.80, 312,218.88 and 97,431.04 is: 146,060.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,268.80 : 312,218.88 = 97,431.04 : x
  2. Step 2: Convert to fraction form
    208,268.80/312,218.88 = 97,431.04/x
  3. Step 3: Cross multiply
    208,268.80x = 312,218.88 × 97,431.04
  4. Step 4: Simplify right side
    208,268.80x = 30,419,810,186.04
  5. Step 5: Solve for x
    x = 30,419,810,186.04/208,268.80
  6. Step 6: Final answer
    x = 146,060.33

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