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Finding the Fourth Proportional to 442,983.80, 664,572.90 and 143,413.40

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Solution

The fourth proportional to 442,983.80, 664,572.90 and 143,413.40 is: 215,151.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,983.80 : 664,572.90 = 143,413.40 : x
  2. Step 2: Convert to fraction form
    442,983.80/664,572.90 = 143,413.40/x
  3. Step 3: Cross multiply
    442,983.80x = 664,572.90 × 143,413.40
  4. Step 4: Simplify right side
    442,983.80x = 95,308,659,136.86
  5. Step 5: Solve for x
    x = 95,308,659,136.86/442,983.80
  6. Step 6: Final answer
    x = 215,151.57

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