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Finding the Fourth Proportional to 340,951.85, 511,427.78 and 208,091.60

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Solution

The fourth proportional to 340,951.85, 511,427.78 and 208,091.60 is: 312,137.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,951.85 : 511,427.78 = 208,091.60 : x
  2. Step 2: Convert to fraction form
    340,951.85/511,427.78 = 208,091.60/x
  3. Step 3: Cross multiply
    340,951.85x = 511,427.78 × 208,091.60
  4. Step 4: Simplify right side
    340,951.85x = 106,423,823,984.19
  5. Step 5: Solve for x
    x = 106,423,823,984.19/340,951.85
  6. Step 6: Final answer
    x = 312,137.40

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