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Finding the Fourth Proportional to 394,003.44, 591,063.48 and 144,666

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Solution

The fourth proportional to 394,003.44, 591,063.48 and 144,666 is: 217,020.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,003.44 : 591,063.48 = 144,666 : x
  2. Step 2: Convert to fraction form
    394,003.44/591,063.48 = 144,666/x
  3. Step 3: Cross multiply
    394,003.44x = 591,063.48 × 144,666
  4. Step 4: Simplify right side
    394,003.44x = 85,506,789,397.68
  5. Step 5: Solve for x
    x = 85,506,789,397.68/394,003.44
  6. Step 6: Final answer
    x = 217,020.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.