Home / 263,004.49-394,518.45-80,621.85

Finding the Fourth Proportional to 263,004.49, 394,518.45 and 80,621.85

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Solution

The fourth proportional to 263,004.49, 394,518.45 and 80,621.85 is: 120,936.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,004.49 : 394,518.45 = 80,621.85 : x
  2. Step 2: Convert to fraction form
    263,004.49/394,518.45 = 80,621.85/x
  3. Step 3: Cross multiply
    263,004.49x = 394,518.45 × 80,621.85
  4. Step 4: Simplify right side
    263,004.49x = 31,806,807,298.13
  5. Step 5: Solve for x
    x = 31,806,807,298.13/263,004.49
  6. Step 6: Final answer
    x = 120,936.37

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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.