Home / 204,217.20-305,669.70-145,168.20

Finding the Fourth Proportional to 204,217.20, 305,669.70 and 145,168.20

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Solution

The fourth proportional to 204,217.20, 305,669.70 and 145,168.20 is: 217,285.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,217.20 : 305,669.70 = 145,168.20 : x
  2. Step 2: Convert to fraction form
    204,217.20/305,669.70 = 145,168.20/x
  3. Step 3: Cross multiply
    204,217.20x = 305,669.70 × 145,168.20
  4. Step 4: Simplify right side
    204,217.20x = 44,373,520,143.54
  5. Step 5: Solve for x
    x = 44,373,520,143.54/204,217.20
  6. Step 6: Final answer
    x = 217,285.91

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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.