Home / 278,455.26-384,176.79-157,584.54

Finding the Fourth Proportional to 278,455.26, 384,176.79 and 157,584.54

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Solution

The fourth proportional to 278,455.26, 384,176.79 and 157,584.54 is: 217,414.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,455.26 : 384,176.79 = 157,584.54 : x
  2. Step 2: Convert to fraction form
    278,455.26/384,176.79 = 157,584.54/x
  3. Step 3: Cross multiply
    278,455.26x = 384,176.79 × 157,584.54
  4. Step 4: Simplify right side
    278,455.26x = 60,540,322,730.83
  5. Step 5: Solve for x
    x = 60,540,322,730.83/278,455.26
  6. Step 6: Final answer
    x = 217,414.90

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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.