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Finding the Fourth Proportional to 255,116.40, 382,679.28 and 111,007.68

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Solution

The fourth proportional to 255,116.40, 382,679.28 and 111,007.68 is: 166,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,116.40 : 382,679.28 = 111,007.68 : x
  2. Step 2: Convert to fraction form
    255,116.40/382,679.28 = 111,007.68/x
  3. Step 3: Cross multiply
    255,116.40x = 382,679.28 × 111,007.68
  4. Step 4: Simplify right side
    255,116.40x = 42,480,339,056.87
  5. Step 5: Solve for x
    x = 42,480,339,056.87/255,116.40
  6. Step 6: Final answer
    x = 166,513.56

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