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Finding the Fourth Proportional to 305,285.78, 457,605.47 and 102,689.01

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Solution

The fourth proportional to 305,285.78, 457,605.47 and 102,689.01 is: 153,924.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,285.78 : 457,605.47 = 102,689.01 : x
  2. Step 2: Convert to fraction form
    305,285.78/457,605.47 = 102,689.01/x
  3. Step 3: Cross multiply
    305,285.78x = 457,605.47 × 102,689.01
  4. Step 4: Simplify right side
    305,285.78x = 46,991,052,171.44
  5. Step 5: Solve for x
    x = 46,991,052,171.44/305,285.78
  6. Step 6: Final answer
    x = 153,924.80

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