Home / 394,515.12-544,403.52-222,439.20

Finding the Fourth Proportional to 394,515.12, 544,403.52 and 222,439.20

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Solution

The fourth proportional to 394,515.12, 544,403.52 and 222,439.20 is: 306,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,515.12 : 544,403.52 = 222,439.20 : x
  2. Step 2: Convert to fraction form
    394,515.12/544,403.52 = 222,439.20/x
  3. Step 3: Cross multiply
    394,515.12x = 544,403.52 × 222,439.20
  4. Step 4: Simplify right side
    394,515.12x = 121,096,683,465.98
  5. Step 5: Solve for x
    x = 121,096,683,465.98/394,515.12
  6. Step 6: Final answer
    x = 306,950.68

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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.