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Finding the Fourth Proportional to 313,238.51, 469,857.77 and 76,578.38

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Solution

The fourth proportional to 313,238.51, 469,857.77 and 76,578.38 is: 114,867.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,238.51 : 469,857.77 = 76,578.38 : x
  2. Step 2: Convert to fraction form
    313,238.51/469,857.77 = 76,578.38/x
  3. Step 3: Cross multiply
    313,238.51x = 469,857.77 × 76,578.38
  4. Step 4: Simplify right side
    313,238.51x = 35,980,946,474.12
  5. Step 5: Solve for x
    x = 35,980,946,474.12/313,238.51
  6. Step 6: Final answer
    x = 114,867.57

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