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Finding the Fourth Proportional to 285,504.27, 427,789.19 and 172,843.02

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Solution

The fourth proportional to 285,504.27, 427,789.19 and 172,843.02 is: 258,981.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,504.27 : 427,789.19 = 172,843.02 : x
  2. Step 2: Convert to fraction form
    285,504.27/427,789.19 = 172,843.02/x
  3. Step 3: Cross multiply
    285,504.27x = 427,789.19 × 172,843.02
  4. Step 4: Simplify right side
    285,504.27x = 73,940,374,658.74
  5. Step 5: Solve for x
    x = 73,940,374,658.74/285,504.27
  6. Step 6: Final answer
    x = 258,981.68

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