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Finding the Fourth Proportional to 379,027, 523,049.48 and 217,877.92

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Solution

The fourth proportional to 379,027, 523,049.48 and 217,877.92 is: 300,667.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,027 : 523,049.48 = 217,877.92 : x
  2. Step 2: Convert to fraction form
    379,027/523,049.48 = 217,877.92/x
  3. Step 3: Cross multiply
    379,027x = 523,049.48 × 217,877.92
  4. Step 4: Simplify right side
    379,027x = 113,960,932,759.48
  5. Step 5: Solve for x
    x = 113,960,932,759.48/379,027
  6. Step 6: Final answer
    x = 300,667.06

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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.