Home / 215,296.10-322,930.88-80,333.90

Finding the Fourth Proportional to 215,296.10, 322,930.88 and 80,333.90

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Solution

The fourth proportional to 215,296.10, 322,930.88 and 80,333.90 is: 120,495.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,296.10 : 322,930.88 = 80,333.90 : x
  2. Step 2: Convert to fraction form
    215,296.10/322,930.88 = 80,333.90/x
  3. Step 3: Cross multiply
    215,296.10x = 322,930.88 × 80,333.90
  4. Step 4: Simplify right side
    215,296.10x = 25,942,297,020.83
  5. Step 5: Solve for x
    x = 25,942,297,020.83/215,296.10
  6. Step 6: Final answer
    x = 120,495.90

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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.