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Finding the Fourth Proportional to 394,705.70, 544,671.50 and 222,613.37

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Solution

The fourth proportional to 394,705.70, 544,671.50 and 222,613.37 is: 307,193.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,705.70 : 544,671.50 = 222,613.37 : x
  2. Step 2: Convert to fraction form
    394,705.70/544,671.50 = 222,613.37/x
  3. Step 3: Cross multiply
    394,705.70x = 544,671.50 × 222,613.37
  4. Step 4: Simplify right side
    394,705.70x = 121,251,158,157.96
  5. Step 5: Solve for x
    x = 121,251,158,157.96/394,705.70
  6. Step 6: Final answer
    x = 307,193.84

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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.