Home / 278,105.64-383,788.44-150,781.56

Finding the Fourth Proportional to 278,105.64, 383,788.44 and 150,781.56

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Solution

The fourth proportional to 278,105.64, 383,788.44 and 150,781.56 is: 208,079.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,105.64 : 383,788.44 = 150,781.56 : x
  2. Step 2: Convert to fraction form
    278,105.64/383,788.44 = 150,781.56/x
  3. Step 3: Cross multiply
    278,105.64x = 383,788.44 × 150,781.56
  4. Step 4: Simplify right side
    278,105.64x = 57,868,219,693.17
  5. Step 5: Solve for x
    x = 57,868,219,693.17/278,105.64
  6. Step 6: Final answer
    x = 208,079.99

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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.