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Finding the Fourth Proportional to 438,429.80, 658,335.90 and 251,805.80

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Solution

The fourth proportional to 438,429.80, 658,335.90 and 251,805.80 is: 378,105.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,429.80 : 658,335.90 = 251,805.80 : x
  2. Step 2: Convert to fraction form
    438,429.80/658,335.90 = 251,805.80/x
  3. Step 3: Cross multiply
    438,429.80x = 658,335.90 × 251,805.80
  4. Step 4: Simplify right side
    438,429.80x = 165,772,797,968.22
  5. Step 5: Solve for x
    x = 165,772,797,968.22/438,429.80
  6. Step 6: Final answer
    x = 378,105.68

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