Home / 394,981.68-545,061.24-225,270.48

Finding the Fourth Proportional to 394,981.68, 545,061.24 and 225,270.48

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Solution

The fourth proportional to 394,981.68, 545,061.24 and 225,270.48 is: 310,865.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,981.68 : 545,061.24 = 225,270.48 : x
  2. Step 2: Convert to fraction form
    394,981.68/545,061.24 = 225,270.48/x
  3. Step 3: Cross multiply
    394,981.68x = 545,061.24 × 225,270.48
  4. Step 4: Simplify right side
    394,981.68x = 122,786,207,164.20
  5. Step 5: Solve for x
    x = 122,786,207,164.20/394,981.68
  6. Step 6: Final answer
    x = 310,865.58

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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.