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Finding the Fourth Proportional to 385,995.78, 532,673.82 and 216,231.12

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Solution

The fourth proportional to 385,995.78, 532,673.82 and 216,231.12 is: 298,398.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,995.78 : 532,673.82 = 216,231.12 : x
  2. Step 2: Convert to fraction form
    385,995.78/532,673.82 = 216,231.12/x
  3. Step 3: Cross multiply
    385,995.78x = 532,673.82 × 216,231.12
  4. Step 4: Simplify right side
    385,995.78x = 115,180,656,693.28
  5. Step 5: Solve for x
    x = 115,180,656,693.28/385,995.78
  6. Step 6: Final answer
    x = 298,398.75

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