Home / 311,355.18-467,098.20-100,976.58

Finding the Fourth Proportional to 311,355.18, 467,098.20 and 100,976.58

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Solution

The fourth proportional to 311,355.18, 467,098.20 and 100,976.58 is: 151,486.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,355.18 : 467,098.20 = 100,976.58 : x
  2. Step 2: Convert to fraction form
    311,355.18/467,098.20 = 100,976.58/x
  3. Step 3: Cross multiply
    311,355.18x = 467,098.20 × 100,976.58
  4. Step 4: Simplify right side
    311,355.18x = 47,165,978,760.16
  5. Step 5: Solve for x
    x = 47,165,978,760.16/311,355.18
  6. Step 6: Final answer
    x = 151,486.09

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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.