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Finding the Fourth Proportional to 219,163.80, 329,052.90 and 136,219.80

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Solution

The fourth proportional to 219,163.80, 329,052.90 and 136,219.80 is: 204,520.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,163.80 : 329,052.90 = 136,219.80 : x
  2. Step 2: Convert to fraction form
    219,163.80/329,052.90 = 136,219.80/x
  3. Step 3: Cross multiply
    219,163.80x = 329,052.90 × 136,219.80
  4. Step 4: Simplify right side
    219,163.80x = 44,823,520,227.42
  5. Step 5: Solve for x
    x = 44,823,520,227.42/219,163.80
  6. Step 6: Final answer
    x = 204,520.64

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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.