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Finding the Fourth Proportional to 384,253.80, 576,380.70 and 266,155.80

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Solution

The fourth proportional to 384,253.80, 576,380.70 and 266,155.80 is: 399,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,253.80 : 576,380.70 = 266,155.80 : x
  2. Step 2: Convert to fraction form
    384,253.80/576,380.70 = 266,155.80/x
  3. Step 3: Cross multiply
    384,253.80x = 576,380.70 × 266,155.80
  4. Step 4: Simplify right side
    384,253.80x = 153,407,066,313.06
  5. Step 5: Solve for x
    x = 153,407,066,313.06/384,253.80
  6. Step 6: Final answer
    x = 399,233.70

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