Home / 515,621.70-773,247.26-178,571.59

Finding the Fourth Proportional to 515,621.70, 773,247.26 and 178,571.59

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Solution

The fourth proportional to 515,621.70, 773,247.26 and 178,571.59 is: 267,793.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,621.70 : 773,247.26 = 178,571.59 : x
  2. Step 2: Convert to fraction form
    515,621.70/773,247.26 = 178,571.59/x
  3. Step 3: Cross multiply
    515,621.70x = 773,247.26 × 178,571.59
  4. Step 4: Simplify right side
    515,621.70x = 138,079,991,194.65
  5. Step 5: Solve for x
    x = 138,079,991,194.65/515,621.70
  6. Step 6: Final answer
    x = 267,793.21

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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.