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Finding the Fourth Proportional to 394,249.73, 544,064.29 and 212,961.60

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Solution

The fourth proportional to 394,249.73, 544,064.29 and 212,961.60 is: 293,886.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,249.73 : 544,064.29 = 212,961.60 : x
  2. Step 2: Convert to fraction form
    394,249.73/544,064.29 = 212,961.60/x
  3. Step 3: Cross multiply
    394,249.73x = 544,064.29 × 212,961.60
  4. Step 4: Simplify right side
    394,249.73x = 115,864,801,168.86
  5. Step 5: Solve for x
    x = 115,864,801,168.86/394,249.73
  6. Step 6: Final answer
    x = 293,886.83

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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.