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Finding the Fourth Proportional to 426,205.80, 639,600.30 and 236,665.80

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Solution

The fourth proportional to 426,205.80, 639,600.30 and 236,665.80 is: 355,160.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,205.80 : 639,600.30 = 236,665.80 : x
  2. Step 2: Convert to fraction form
    426,205.80/639,600.30 = 236,665.80/x
  3. Step 3: Cross multiply
    426,205.80x = 639,600.30 × 236,665.80
  4. Step 4: Simplify right side
    426,205.80x = 151,371,516,679.74
  5. Step 5: Solve for x
    x = 151,371,516,679.74/426,205.80
  6. Step 6: Final answer
    x = 355,160.62

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