Home / 394,984.57-545,065.20-225,273.37

Finding the Fourth Proportional to 394,984.57, 545,065.20 and 225,273.37

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Solution

The fourth proportional to 394,984.57, 545,065.20 and 225,273.37 is: 310,869.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,984.57 : 545,065.20 = 225,273.37 : x
  2. Step 2: Convert to fraction form
    394,984.57/545,065.20 = 225,273.37/x
  3. Step 3: Cross multiply
    394,984.57x = 545,065.20 × 225,273.37
  4. Step 4: Simplify right side
    394,984.57x = 122,788,674,473.72
  5. Step 5: Solve for x
    x = 122,788,674,473.72/394,984.57
  6. Step 6: Final answer
    x = 310,869.55

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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.