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Finding the Fourth Proportional to 312,186.87, 430,817.88 and 168,946.95

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Solution

The fourth proportional to 312,186.87, 430,817.88 and 168,946.95 is: 233,146.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,186.87 : 430,817.88 = 168,946.95 : x
  2. Step 2: Convert to fraction form
    312,186.87/430,817.88 = 168,946.95/x
  3. Step 3: Cross multiply
    312,186.87x = 430,817.88 × 168,946.95
  4. Step 4: Simplify right side
    312,186.87x = 72,785,366,831.47
  5. Step 5: Solve for x
    x = 72,785,366,831.47/312,186.87
  6. Step 6: Final answer
    x = 233,146.79

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