Home / 215,263.28-322,895.19-102,917.09

Finding the Fourth Proportional to 215,263.28, 322,895.19 and 102,917.09

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Solution

The fourth proportional to 215,263.28, 322,895.19 and 102,917.09 is: 154,375.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,263.28 : 322,895.19 = 102,917.09 : x
  2. Step 2: Convert to fraction form
    215,263.28/322,895.19 = 102,917.09/x
  3. Step 3: Cross multiply
    215,263.28x = 322,895.19 × 102,917.09
  4. Step 4: Simplify right side
    215,263.28x = 33,231,433,329.80
  5. Step 5: Solve for x
    x = 33,231,433,329.80/215,263.28
  6. Step 6: Final answer
    x = 154,375.76

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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.