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Finding the Fourth Proportional to 285,553.71, 428,237.13 and 133,703.79

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Solution

The fourth proportional to 285,553.71, 428,237.13 and 133,703.79 is: 200,511.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,553.71 : 428,237.13 = 133,703.79 : x
  2. Step 2: Convert to fraction form
    285,553.71/428,237.13 = 133,703.79/x
  3. Step 3: Cross multiply
    285,553.71x = 428,237.13 × 133,703.79
  4. Step 4: Simplify right side
    285,553.71x = 57,256,927,299.72
  5. Step 5: Solve for x
    x = 57,256,927,299.72/285,553.71
  6. Step 6: Final answer
    x = 200,511.94

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