Home / 263,327.84-394,073.04-215,388.80

Finding the Fourth Proportional to 263,327.84, 394,073.04 and 215,388.80

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Solution

The fourth proportional to 263,327.84, 394,073.04 and 215,388.80 is: 322,331.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,327.84 : 394,073.04 = 215,388.80 : x
  2. Step 2: Convert to fraction form
    263,327.84/394,073.04 = 215,388.80/x
  3. Step 3: Cross multiply
    263,327.84x = 394,073.04 × 215,388.80
  4. Step 4: Simplify right side
    263,327.84x = 84,878,919,197.95
  5. Step 5: Solve for x
    x = 84,878,919,197.95/263,327.84
  6. Step 6: Final answer
    x = 322,331.73

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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.