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Finding the Fourth Proportional to 389,158.88, 537,039.60 and 210,310.88

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Solution

The fourth proportional to 389,158.88, 537,039.60 and 210,310.88 is: 290,229.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,158.88 : 537,039.60 = 210,310.88 : x
  2. Step 2: Convert to fraction form
    389,158.88/537,039.60 = 210,310.88/x
  3. Step 3: Cross multiply
    389,158.88x = 537,039.60 × 210,310.88
  4. Step 4: Simplify right side
    389,158.88x = 112,945,270,870.85
  5. Step 5: Solve for x
    x = 112,945,270,870.85/389,158.88
  6. Step 6: Final answer
    x = 290,229.20

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