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Finding the Fourth Proportional to 321,247.35, 481,834.58 and 84,608.55

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Solution

The fourth proportional to 321,247.35, 481,834.58 and 84,608.55 is: 126,903.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,247.35 : 481,834.58 = 84,608.55 : x
  2. Step 2: Convert to fraction form
    321,247.35/481,834.58 = 84,608.55/x
  3. Step 3: Cross multiply
    321,247.35x = 481,834.58 × 84,608.55
  4. Step 4: Simplify right side
    321,247.35x = 40,767,324,730.62
  5. Step 5: Solve for x
    x = 40,767,324,730.62/321,247.35
  6. Step 6: Final answer
    x = 126,903.22

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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.