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Finding the Fourth Proportional to 325,846.80, 488,413.80 and 115,376.40

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Solution

The fourth proportional to 325,846.80, 488,413.80 and 115,376.40 is: 172,938.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,846.80 : 488,413.80 = 115,376.40 : x
  2. Step 2: Convert to fraction form
    325,846.80/488,413.80 = 115,376.40/x
  3. Step 3: Cross multiply
    325,846.80x = 488,413.80 × 115,376.40
  4. Step 4: Simplify right side
    325,846.80x = 56,351,425,954.32
  5. Step 5: Solve for x
    x = 56,351,425,954.32/325,846.80
  6. Step 6: Final answer
    x = 172,938.41

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