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Finding the Fourth Proportional to 436,253.25, 654,388.08 and 136,727.20

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Solution

The fourth proportional to 436,253.25, 654,388.08 and 136,727.20 is: 205,093.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,253.25 : 654,388.08 = 136,727.20 : x
  2. Step 2: Convert to fraction form
    436,253.25/654,388.08 = 136,727.20/x
  3. Step 3: Cross multiply
    436,253.25x = 654,388.08 × 136,727.20
  4. Step 4: Simplify right side
    436,253.25x = 89,472,649,891.78
  5. Step 5: Solve for x
    x = 89,472,649,891.78/436,253.25
  6. Step 6: Final answer
    x = 205,093.37

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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.