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Finding the Fourth Proportional to 281,855.54, 422,220 and 169,474.22

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Solution

The fourth proportional to 281,855.54, 422,220 and 169,474.22 is: 253,872.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,855.54 : 422,220 = 169,474.22 : x
  2. Step 2: Convert to fraction form
    281,855.54/422,220 = 169,474.22/x
  3. Step 3: Cross multiply
    281,855.54x = 422,220 × 169,474.22
  4. Step 4: Simplify right side
    281,855.54x = 71,555,403,057.30
  5. Step 5: Solve for x
    x = 71,555,403,057.30/281,855.54
  6. Step 6: Final answer
    x = 253,872.61

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1.5x scale

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.