Home / 278,144.92-383,847.70-157,304.36

Finding the Fourth Proportional to 278,144.92, 383,847.70 and 157,304.36

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Solution

The fourth proportional to 278,144.92, 383,847.70 and 157,304.36 is: 217,084.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,144.92 : 383,847.70 = 157,304.36 : x
  2. Step 2: Convert to fraction form
    278,144.92/383,847.70 = 157,304.36/x
  3. Step 3: Cross multiply
    278,144.92x = 383,847.70 × 157,304.36
  4. Step 4: Simplify right side
    278,144.92x = 60,380,916,785.97
  5. Step 5: Solve for x
    x = 60,380,916,785.97/278,144.92
  6. Step 6: Final answer
    x = 217,084.38

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1.5x scale

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.