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Finding the Fourth Proportional to 312,308.77, 430,986.25 and 169,068.81

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Solution

The fourth proportional to 312,308.77, 430,986.25 and 169,068.81 is: 233,315.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,308.77 : 430,986.25 = 169,068.81 : x
  2. Step 2: Convert to fraction form
    312,308.77/430,986.25 = 169,068.81/x
  3. Step 3: Cross multiply
    312,308.77x = 430,986.25 × 169,068.81
  4. Step 4: Simplify right side
    312,308.77x = 72,866,332,413.86
  5. Step 5: Solve for x
    x = 72,866,332,413.86/312,308.77
  6. Step 6: Final answer
    x = 233,315.04

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