Home / 378,224.20-567,336.30-211,990.60

Finding the Fourth Proportional to 378,224.20, 567,336.30 and 211,990.60

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Solution

The fourth proportional to 378,224.20, 567,336.30 and 211,990.60 is: 317,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,224.20 : 567,336.30 = 211,990.60 : x
  2. Step 2: Convert to fraction form
    378,224.20/567,336.30 = 211,990.60/x
  3. Step 3: Cross multiply
    378,224.20x = 567,336.30 × 211,990.60
  4. Step 4: Simplify right side
    378,224.20x = 120,269,962,638.78
  5. Step 5: Solve for x
    x = 120,269,962,638.78/378,224.20
  6. Step 6: Final answer
    x = 317,985.90

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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.