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Finding the Fourth Proportional to 343,311.40, 515,015.70 and 106,629.40

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Solution

The fourth proportional to 343,311.40, 515,015.70 and 106,629.40 is: 159,959.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,311.40 : 515,015.70 = 106,629.40 : x
  2. Step 2: Convert to fraction form
    343,311.40/515,015.70 = 106,629.40/x
  3. Step 3: Cross multiply
    343,311.40x = 515,015.70 × 106,629.40
  4. Step 4: Simplify right side
    343,311.40x = 54,915,815,081.58
  5. Step 5: Solve for x
    x = 54,915,815,081.58/343,311.40
  6. Step 6: Final answer
    x = 159,959.19

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