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Finding the Fourth Proportional to 422,290.60, 633,435.72 and 169,571

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Solution

The fourth proportional to 422,290.60, 633,435.72 and 169,571 is: 254,356.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,290.60 : 633,435.72 = 169,571 : x
  2. Step 2: Convert to fraction form
    422,290.60/633,435.72 = 169,571/x
  3. Step 3: Cross multiply
    422,290.60x = 633,435.72 × 169,571
  4. Step 4: Simplify right side
    422,290.60x = 107,412,327,628.27
  5. Step 5: Solve for x
    x = 107,412,327,628.27/422,290.60
  6. Step 6: Final answer
    x = 254,356.43

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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.