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Finding the Fourth Proportional to 385,111.50, 531,412.97 and 213,002.11

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Solution

The fourth proportional to 385,111.50, 531,412.97 and 213,002.11 is: 293,920.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,111.50 : 531,412.97 = 213,002.11 : x
  2. Step 2: Convert to fraction form
    385,111.50/531,412.97 = 213,002.11/x
  3. Step 3: Cross multiply
    385,111.50x = 531,412.97 × 213,002.11
  4. Step 4: Simplify right side
    385,111.50x = 113,192,083,891.37
  5. Step 5: Solve for x
    x = 113,192,083,891.37/385,111.50
  6. Step 6: Final answer
    x = 293,920.29

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