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Finding the Fourth Proportional to 279,671.90, 385,918.45 and 157,144.82

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Solution

The fourth proportional to 279,671.90, 385,918.45 and 157,144.82 is: 216,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,671.90 : 385,918.45 = 157,144.82 : x
  2. Step 2: Convert to fraction form
    279,671.90/385,918.45 = 157,144.82/x
  3. Step 3: Cross multiply
    279,671.90x = 385,918.45 × 157,144.82
  4. Step 4: Simplify right side
    279,671.90x = 60,645,083,037.47
  5. Step 5: Solve for x
    x = 60,645,083,037.47/279,671.90
  6. Step 6: Final answer
    x = 216,843.68

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