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Finding the Fourth Proportional to 394,424.33, 544,272.91 and 222,384.53

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Solution

The fourth proportional to 394,424.33, 544,272.91 and 222,384.53 is: 306,872.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,424.33 : 544,272.91 = 222,384.53 : x
  2. Step 2: Convert to fraction form
    394,424.33/544,272.91 = 222,384.53/x
  3. Step 3: Cross multiply
    394,424.33x = 544,272.91 × 222,384.53
  4. Step 4: Simplify right side
    394,424.33x = 121,037,876,086.80
  5. Step 5: Solve for x
    x = 121,037,876,086.80/394,424.33
  6. Step 6: Final answer
    x = 306,872.24

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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.