Home / 278,105.32-383,786.18-150,780.97

Finding the Fourth Proportional to 278,105.32, 383,786.18 and 150,780.97

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Solution

The fourth proportional to 278,105.32, 383,786.18 and 150,780.97 is: 208,078.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,105.32 : 383,786.18 = 150,780.97 : x
  2. Step 2: Convert to fraction form
    278,105.32/383,786.18 = 150,780.97/x
  3. Step 3: Cross multiply
    278,105.32x = 383,786.18 × 150,780.97
  4. Step 4: Simplify right side
    278,105.32x = 57,867,652,492.99
  5. Step 5: Solve for x
    x = 57,867,652,492.99/278,105.32
  6. Step 6: Final answer
    x = 208,078.19

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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.