Home / 394,960.32-545,034.72-225,190.56

Finding the Fourth Proportional to 394,960.32, 545,034.72 and 225,190.56

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Solution

The fourth proportional to 394,960.32, 545,034.72 and 225,190.56 is: 310,756.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,960.32 : 545,034.72 = 225,190.56 : x
  2. Step 2: Convert to fraction form
    394,960.32/545,034.72 = 225,190.56/x
  3. Step 3: Cross multiply
    394,960.32x = 545,034.72 × 225,190.56
  4. Step 4: Simplify right side
    394,960.32x = 122,736,673,816.24
  5. Step 5: Solve for x
    x = 122,736,673,816.24/394,960.32
  6. Step 6: Final answer
    x = 310,756.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.