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Finding the Fourth Proportional to 311,665.75, 467,576.39 and 90,049.75

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Solution

The fourth proportional to 311,665.75, 467,576.39 and 90,049.75 is: 135,097.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,665.75 : 467,576.39 = 90,049.75 : x
  2. Step 2: Convert to fraction form
    311,665.75/467,576.39 = 90,049.75/x
  3. Step 3: Cross multiply
    311,665.75x = 467,576.39 × 90,049.75
  4. Step 4: Simplify right side
    311,665.75x = 42,105,136,575.15
  5. Step 5: Solve for x
    x = 42,105,136,575.15/311,665.75
  6. Step 6: Final answer
    x = 135,097.09

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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.