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Finding the Fourth Proportional to 320,768.87, 480,622.01 and 225,533.77

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Solution

The fourth proportional to 320,768.87, 480,622.01 and 225,533.77 is: 337,927.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,768.87 : 480,622.01 = 225,533.77 : x
  2. Step 2: Convert to fraction form
    320,768.87/480,622.01 = 225,533.77/x
  3. Step 3: Cross multiply
    320,768.87x = 480,622.01 × 225,533.77
  4. Step 4: Simplify right side
    320,768.87x = 108,396,491,531.05
  5. Step 5: Solve for x
    x = 108,396,491,531.05/320,768.87
  6. Step 6: Final answer
    x = 337,927.09

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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.