Home / 353,660.45-487,121.72-271,832.22

Finding the Fourth Proportional to 353,660.45, 487,121.72 and 271,832.22

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Solution

The fourth proportional to 353,660.45, 487,121.72 and 271,832.22 is: 374,413.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,660.45 : 487,121.72 = 271,832.22 : x
  2. Step 2: Convert to fraction form
    353,660.45/487,121.72 = 271,832.22/x
  3. Step 3: Cross multiply
    353,660.45x = 487,121.72 × 271,832.22
  4. Step 4: Simplify right side
    353,660.45x = 132,415,377,198.66
  5. Step 5: Solve for x
    x = 132,415,377,198.66/353,660.45
  6. Step 6: Final answer
    x = 374,413.87

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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.