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Finding the Fourth Proportional to 308,920.47, 463,291.20 and 92,770.48

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Solution

The fourth proportional to 308,920.47, 463,291.20 and 92,770.48 is: 139,128.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,920.47 : 463,291.20 = 92,770.48 : x
  2. Step 2: Convert to fraction form
    308,920.47/463,291.20 = 92,770.48/x
  3. Step 3: Cross multiply
    308,920.47x = 463,291.20 × 92,770.48
  4. Step 4: Simplify right side
    308,920.47x = 42,979,747,452.43
  5. Step 5: Solve for x
    x = 42,979,747,452.43/308,920.47
  6. Step 6: Final answer
    x = 139,128.84

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