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Finding the Fourth Proportional to 378,144.16, 521,842.44 and 208,384.36

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Solution

The fourth proportional to 378,144.16, 521,842.44 and 208,384.36 is: 287,572.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,144.16 : 521,842.44 = 208,384.36 : x
  2. Step 2: Convert to fraction form
    378,144.16/521,842.44 = 208,384.36/x
  3. Step 3: Cross multiply
    378,144.16x = 521,842.44 × 208,384.36
  4. Step 4: Simplify right side
    378,144.16x = 108,743,802,880.24
  5. Step 5: Solve for x
    x = 108,743,802,880.24/378,144.16
  6. Step 6: Final answer
    x = 287,572.35

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