Home / 251,005.05-376,528.83-80,251.38

Finding the Fourth Proportional to 251,005.05, 376,528.83 and 80,251.38

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Solution

The fourth proportional to 251,005.05, 376,528.83 and 80,251.38 is: 120,383.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,005.05 : 376,528.83 = 80,251.38 : x
  2. Step 2: Convert to fraction form
    251,005.05/376,528.83 = 80,251.38/x
  3. Step 3: Cross multiply
    251,005.05x = 376,528.83 × 80,251.38
  4. Step 4: Simplify right side
    251,005.05x = 30,216,958,217.29
  5. Step 5: Solve for x
    x = 30,216,958,217.29/251,005.05
  6. Step 6: Final answer
    x = 120,383.87

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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.