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Finding the Fourth Proportional to 378,160.88, 521,872.94 and 208,405.94

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Solution

The fourth proportional to 378,160.88, 521,872.94 and 208,405.94 is: 287,606.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,160.88 : 521,872.94 = 208,405.94 : x
  2. Step 2: Convert to fraction form
    378,160.88/521,872.94 = 208,405.94/x
  3. Step 3: Cross multiply
    378,160.88x = 521,872.94 × 208,405.94
  4. Step 4: Simplify right side
    378,160.88x = 108,761,418,532.91
  5. Step 5: Solve for x
    x = 108,761,418,532.91/378,160.88
  6. Step 6: Final answer
    x = 287,606.22

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