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Finding the Fourth Proportional to 269,388.72, 404,173.80 and 169,431.12

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Solution

The fourth proportional to 269,388.72, 404,173.80 and 169,431.12 is: 254,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,388.72 : 404,173.80 = 169,431.12 : x
  2. Step 2: Convert to fraction form
    269,388.72/404,173.80 = 169,431.12/x
  3. Step 3: Cross multiply
    269,388.72x = 404,173.80 × 169,431.12
  4. Step 4: Simplify right side
    269,388.72x = 68,479,619,608.66
  5. Step 5: Solve for x
    x = 68,479,619,608.66/269,388.72
  6. Step 6: Final answer
    x = 254,203.74

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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.