Home / 220,921.17-331,072.85-119,500.28

Finding the Fourth Proportional to 220,921.17, 331,072.85 and 119,500.28

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Solution

The fourth proportional to 220,921.17, 331,072.85 and 119,500.28 is: 179,083.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,921.17 : 331,072.85 = 119,500.28 : x
  2. Step 2: Convert to fraction form
    220,921.17/331,072.85 = 119,500.28/x
  3. Step 3: Cross multiply
    220,921.17x = 331,072.85 × 119,500.28
  4. Step 4: Simplify right side
    220,921.17x = 39,563,299,091.45
  5. Step 5: Solve for x
    x = 39,563,299,091.45/220,921.17
  6. Step 6: Final answer
    x = 179,083.33

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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.