Home / 220,789.70-331,233.75-80,548.32

Finding the Fourth Proportional to 220,789.70, 331,233.75 and 80,548.32

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Solution

The fourth proportional to 220,789.70, 331,233.75 and 80,548.32 is: 120,840.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,789.70 : 331,233.75 = 80,548.32 : x
  2. Step 2: Convert to fraction form
    220,789.70/331,233.75 = 80,548.32/x
  3. Step 3: Cross multiply
    220,789.70x = 331,233.75 × 80,548.32
  4. Step 4: Simplify right side
    220,789.70x = 26,680,322,089.80
  5. Step 5: Solve for x
    x = 26,680,322,089.80/220,789.70
  6. Step 6: Final answer
    x = 120,840.43

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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.