Home / 320,640.30-481,072.50-200,560.23

Finding the Fourth Proportional to 320,640.30, 481,072.50 and 200,560.23

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Solution

The fourth proportional to 320,640.30, 481,072.50 and 200,560.23 is: 300,910.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,640.30 : 481,072.50 = 200,560.23 : x
  2. Step 2: Convert to fraction form
    320,640.30/481,072.50 = 200,560.23/x
  3. Step 3: Cross multiply
    320,640.30x = 481,072.50 × 200,560.23
  4. Step 4: Simplify right side
    320,640.30x = 96,484,011,246.68
  5. Step 5: Solve for x
    x = 96,484,011,246.68/320,640.30
  6. Step 6: Final answer
    x = 300,910.43

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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.