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Finding the Fourth Proportional to 269,589.90, 404,712.90 and 136,401.60

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Solution

The fourth proportional to 269,589.90, 404,712.90 and 136,401.60 is: 204,768.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,589.90 : 404,712.90 = 136,401.60 : x
  2. Step 2: Convert to fraction form
    269,589.90/404,712.90 = 136,401.60/x
  3. Step 3: Cross multiply
    269,589.90x = 404,712.90 × 136,401.60
  4. Step 4: Simplify right side
    269,589.90x = 55,203,487,100.64
  5. Step 5: Solve for x
    x = 55,203,487,100.64/269,589.90
  6. Step 6: Final answer
    x = 204,768.38

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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.