Home / 220,579.31-330,918.18-80,337.94

Finding the Fourth Proportional to 220,579.31, 330,918.18 and 80,337.94

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Solution

The fourth proportional to 220,579.31, 330,918.18 and 80,337.94 is: 120,524.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,579.31 : 330,918.18 = 80,337.94 : x
  2. Step 2: Convert to fraction form
    220,579.31/330,918.18 = 80,337.94/x
  3. Step 3: Cross multiply
    220,579.31x = 330,918.18 × 80,337.94
  4. Step 4: Simplify right side
    220,579.31x = 26,585,283,761.19
  5. Step 5: Solve for x
    x = 26,585,283,761.19/220,579.31
  6. Step 6: Final answer
    x = 120,524.83

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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.