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Finding the Fourth Proportional to 189,229.28, 283,843.94 and 129,885.03

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Solution

The fourth proportional to 189,229.28, 283,843.94 and 129,885.03 is: 194,827.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,229.28 : 283,843.94 = 129,885.03 : x
  2. Step 2: Convert to fraction form
    189,229.28/283,843.94 = 129,885.03/x
  3. Step 3: Cross multiply
    189,229.28x = 283,843.94 × 129,885.03
  4. Step 4: Simplify right side
    189,229.28x = 36,867,078,012.79
  5. Step 5: Solve for x
    x = 36,867,078,012.79/189,229.28
  6. Step 6: Final answer
    x = 194,827.56

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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.