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Finding the Fourth Proportional to 203,679.41, 305,446.21 and 70,523.91

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Solution

The fourth proportional to 203,679.41, 305,446.21 and 70,523.91 is: 105,760.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,679.41 : 305,446.21 = 70,523.91 : x
  2. Step 2: Convert to fraction form
    203,679.41/305,446.21 = 70,523.91/x
  3. Step 3: Cross multiply
    203,679.41x = 305,446.21 × 70,523.91
  4. Step 4: Simplify right side
    203,679.41x = 21,541,260,847.57
  5. Step 5: Solve for x
    x = 21,541,260,847.57/203,679.41
  6. Step 6: Final answer
    x = 105,760.62

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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.