Home / 311,834.88-430,045.20-204,365.88

Finding the Fourth Proportional to 311,834.88, 430,045.20 and 204,365.88

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Solution

The fourth proportional to 311,834.88, 430,045.20 and 204,365.88 is: 281,836.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,834.88 : 430,045.20 = 204,365.88 : x
  2. Step 2: Convert to fraction form
    311,834.88/430,045.20 = 204,365.88/x
  3. Step 3: Cross multiply
    311,834.88x = 430,045.20 × 204,365.88
  4. Step 4: Simplify right side
    311,834.88x = 87,886,565,737.78
  5. Step 5: Solve for x
    x = 87,886,565,737.78/311,834.88
  6. Step 6: Final answer
    x = 281,836.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.