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Finding the Fourth Proportional to 316,371.80, 474,039.30 and 269,715.80

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Solution

The fourth proportional to 316,371.80, 474,039.30 and 269,715.80 is: 404,131.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,371.80 : 474,039.30 = 269,715.80 : x
  2. Step 2: Convert to fraction form
    316,371.80/474,039.30 = 269,715.80/x
  3. Step 3: Cross multiply
    316,371.80x = 474,039.30 × 269,715.80
  4. Step 4: Simplify right side
    316,371.80x = 127,855,889,030.94
  5. Step 5: Solve for x
    x = 127,855,889,030.94/316,371.80
  6. Step 6: Final answer
    x = 404,131.75

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