Home / 394,976.68-545,054.34-225,265.48

Finding the Fourth Proportional to 394,976.68, 545,054.34 and 225,265.48

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Solution

The fourth proportional to 394,976.68, 545,054.34 and 225,265.48 is: 310,858.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,976.68 : 545,054.34 = 225,265.48 : x
  2. Step 2: Convert to fraction form
    394,976.68/545,054.34 = 225,265.48/x
  3. Step 3: Cross multiply
    394,976.68x = 545,054.34 × 225,265.48
  4. Step 4: Simplify right side
    394,976.68x = 122,781,927,526.18
  5. Step 5: Solve for x
    x = 122,781,927,526.18/394,976.68
  6. Step 6: Final answer
    x = 310,858.68

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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.