Home / 394,956.48-545,039.04-216,108.48

Finding the Fourth Proportional to 394,956.48, 545,039.04 and 216,108.48

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Solution

The fourth proportional to 394,956.48, 545,039.04 and 216,108.48 is: 298,229.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,956.48 : 545,039.04 = 216,108.48 : x
  2. Step 2: Convert to fraction form
    394,956.48/545,039.04 = 216,108.48/x
  3. Step 3: Cross multiply
    394,956.48x = 545,039.04 × 216,108.48
  4. Step 4: Simplify right side
    394,956.48x = 117,787,558,475.06
  5. Step 5: Solve for x
    x = 117,787,558,475.06/394,956.48
  6. Step 6: Final answer
    x = 298,229.21

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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.