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Finding the Fourth Proportional to 269,461.40, 404,192.10 and 91,909.40

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Solution

The fourth proportional to 269,461.40, 404,192.10 and 91,909.40 is: 137,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,461.40 : 404,192.10 = 91,909.40 : x
  2. Step 2: Convert to fraction form
    269,461.40/404,192.10 = 91,909.40/x
  3. Step 3: Cross multiply
    269,461.40x = 404,192.10 × 91,909.40
  4. Step 4: Simplify right side
    269,461.40x = 37,149,053,395.74
  5. Step 5: Solve for x
    x = 37,149,053,395.74/269,461.40
  6. Step 6: Final answer
    x = 137,864.10

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