Home / 220,625.46-330,872.40-80,351.28

Finding the Fourth Proportional to 220,625.46, 330,872.40 and 80,351.28

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Solution

The fourth proportional to 220,625.46, 330,872.40 and 80,351.28 is: 120,502.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,625.46 : 330,872.40 = 80,351.28 : x
  2. Step 2: Convert to fraction form
    220,625.46/330,872.40 = 80,351.28/x
  3. Step 3: Cross multiply
    220,625.46x = 330,872.40 × 80,351.28
  4. Step 4: Simplify right side
    220,625.46x = 26,586,020,856.67
  5. Step 5: Solve for x
    x = 26,586,020,856.67/220,625.46
  6. Step 6: Final answer
    x = 120,502.96

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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.