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Finding the Fourth Proportional to 208,202.39, 312,303.54 and 113,512.20

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Solution

The fourth proportional to 208,202.39, 312,303.54 and 113,512.20 is: 170,268.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,202.39 : 312,303.54 = 113,512.20 : x
  2. Step 2: Convert to fraction form
    208,202.39/312,303.54 = 113,512.20/x
  3. Step 3: Cross multiply
    208,202.39x = 312,303.54 × 113,512.20
  4. Step 4: Simplify right side
    208,202.39x = 35,450,261,893.19
  5. Step 5: Solve for x
    x = 35,450,261,893.19/208,202.39
  6. Step 6: Final answer
    x = 170,268.28

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