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Finding the Fourth Proportional to 536,768.10, 805,250.43 and 221,052.78

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Solution

The fourth proportional to 536,768.10, 805,250.43 and 221,052.78 is: 331,619.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,768.10 : 805,250.43 = 221,052.78 : x
  2. Step 2: Convert to fraction form
    536,768.10/805,250.43 = 221,052.78/x
  3. Step 3: Cross multiply
    536,768.10x = 805,250.43 × 221,052.78
  4. Step 4: Simplify right side
    536,768.10x = 178,002,846,147.70
  5. Step 5: Solve for x
    x = 178,002,846,147.70/536,768.10
  6. Step 6: Final answer
    x = 331,619.64

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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.