Home / 278,895.85-384,879.26-151,571.50

Finding the Fourth Proportional to 278,895.85, 384,879.26 and 151,571.50

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Solution

The fourth proportional to 278,895.85, 384,879.26 and 151,571.50 is: 209,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,895.85 : 384,879.26 = 151,571.50 : x
  2. Step 2: Convert to fraction form
    278,895.85/384,879.26 = 151,571.50/x
  3. Step 3: Cross multiply
    278,895.85x = 384,879.26 × 151,571.50
  4. Step 4: Simplify right side
    278,895.85x = 58,336,726,757.09
  5. Step 5: Solve for x
    x = 58,336,726,757.09/278,895.85
  6. Step 6: Final answer
    x = 209,170.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.