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Finding the Fourth Proportional to 394,464.60, 591,372.90 and 169,997.40

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Solution

The fourth proportional to 394,464.60, 591,372.90 and 169,997.40 is: 254,856.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,464.60 : 591,372.90 = 169,997.40 : x
  2. Step 2: Convert to fraction form
    394,464.60/591,372.90 = 169,997.40/x
  3. Step 3: Cross multiply
    394,464.60x = 591,372.90 × 169,997.40
  4. Step 4: Simplify right side
    394,464.60x = 100,531,855,430.46
  5. Step 5: Solve for x
    x = 100,531,855,430.46/394,464.60
  6. Step 6: Final answer
    x = 254,856.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.