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Finding the Fourth Proportional to 363,078.80, 545,930.40 and 355,205.60

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Solution

The fourth proportional to 363,078.80, 545,930.40 and 355,205.60 is: 534,092.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,078.80 : 545,930.40 = 355,205.60 : x
  2. Step 2: Convert to fraction form
    363,078.80/545,930.40 = 355,205.60/x
  3. Step 3: Cross multiply
    363,078.80x = 545,930.40 × 355,205.60
  4. Step 4: Simplify right side
    363,078.80x = 193,917,535,290.24
  5. Step 5: Solve for x
    x = 193,917,535,290.24/363,078.80
  6. Step 6: Final answer
    x = 534,092.15

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