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Finding the Fourth Proportional to 385,681.91, 578,896.02 and 186,142.77

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Solution

The fourth proportional to 385,681.91, 578,896.02 and 186,142.77 is: 279,394.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,681.91 : 578,896.02 = 186,142.77 : x
  2. Step 2: Convert to fraction form
    385,681.91/578,896.02 = 186,142.77/x
  3. Step 3: Cross multiply
    385,681.91x = 578,896.02 × 186,142.77
  4. Step 4: Simplify right side
    385,681.91x = 107,757,308,704.78
  5. Step 5: Solve for x
    x = 107,757,308,704.78/385,681.91
  6. Step 6: Final answer
    x = 279,394.26

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