Home / 215,267.78-322,901.94-102,921.59

Finding the Fourth Proportional to 215,267.78, 322,901.94 and 102,921.59

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Solution

The fourth proportional to 215,267.78, 322,901.94 and 102,921.59 is: 154,382.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,267.78 : 322,901.94 = 102,921.59 : x
  2. Step 2: Convert to fraction form
    215,267.78/322,901.94 = 102,921.59/x
  3. Step 3: Cross multiply
    215,267.78x = 322,901.94 × 102,921.59
  4. Step 4: Simplify right side
    215,267.78x = 33,233,581,078.88
  5. Step 5: Solve for x
    x = 33,233,581,078.88/215,267.78
  6. Step 6: Final answer
    x = 154,382.51

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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.