Home / 371,517.05-557,099.91-143,919.27

Finding the Fourth Proportional to 371,517.05, 557,099.91 and 143,919.27

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Solution

The fourth proportional to 371,517.05, 557,099.91 and 143,919.27 is: 215,810.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,517.05 : 557,099.91 = 143,919.27 : x
  2. Step 2: Convert to fraction form
    371,517.05/557,099.91 = 143,919.27/x
  3. Step 3: Cross multiply
    371,517.05x = 557,099.91 × 143,919.27
  4. Step 4: Simplify right side
    371,517.05x = 80,177,412,364.27
  5. Step 5: Solve for x
    x = 80,177,412,364.27/371,517.05
  6. Step 6: Final answer
    x = 215,810.86

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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.