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Finding the Fourth Proportional to 311,227.40, 466,898.70 and 100,872.20

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Solution

The fourth proportional to 311,227.40, 466,898.70 and 100,872.20 is: 151,326.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,227.40 : 466,898.70 = 100,872.20 : x
  2. Step 2: Convert to fraction form
    311,227.40/466,898.70 = 100,872.20/x
  3. Step 3: Cross multiply
    311,227.40x = 466,898.70 × 100,872.20
  4. Step 4: Simplify right side
    311,227.40x = 47,097,099,046.14
  5. Step 5: Solve for x
    x = 47,097,099,046.14/311,227.40
  6. Step 6: Final answer
    x = 151,326.97

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1.5x scale

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.