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Finding the Fourth Proportional to 536,589.36, 805,052.52 and 221,194.80

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Solution

The fourth proportional to 536,589.36, 805,052.52 and 221,194.80 is: 331,861.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,589.36 : 805,052.52 = 221,194.80 : x
  2. Step 2: Convert to fraction form
    536,589.36/805,052.52 = 221,194.80/x
  3. Step 3: Cross multiply
    536,589.36x = 805,052.52 × 221,194.80
  4. Step 4: Simplify right side
    536,589.36x = 178,073,431,150.90
  5. Step 5: Solve for x
    x = 178,073,431,150.90/536,589.36
  6. Step 6: Final answer
    x = 331,861.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.