Home / 278,217.41-383,997.51-157,363.79

Finding the Fourth Proportional to 278,217.41, 383,997.51 and 157,363.79

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Solution

The fourth proportional to 278,217.41, 383,997.51 and 157,363.79 is: 217,194.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,217.41 : 383,997.51 = 157,363.79 : x
  2. Step 2: Convert to fraction form
    278,217.41/383,997.51 = 157,363.79/x
  3. Step 3: Cross multiply
    278,217.41x = 383,997.51 × 157,363.79
  4. Step 4: Simplify right side
    278,217.41x = 60,427,301,604.18
  5. Step 5: Solve for x
    x = 60,427,301,604.18/278,217.41
  6. Step 6: Final answer
    x = 217,194.54

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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.