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Finding the Fourth Proportional to 305,854.80, 458,782.20 and 199,566.60

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Solution

The fourth proportional to 305,854.80, 458,782.20 and 199,566.60 is: 299,349.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,854.80 : 458,782.20 = 199,566.60 : x
  2. Step 2: Convert to fraction form
    305,854.80/458,782.20 = 199,566.60/x
  3. Step 3: Cross multiply
    305,854.80x = 458,782.20 × 199,566.60
  4. Step 4: Simplify right side
    305,854.80x = 91,557,603,794.52
  5. Step 5: Solve for x
    x = 91,557,603,794.52/305,854.80
  6. Step 6: Final answer
    x = 299,349.90

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