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Finding the Fourth Proportional to 436,809.39, 655,182.48 and 137,375.62

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Solution

The fourth proportional to 436,809.39, 655,182.48 and 137,375.62 is: 206,053.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,809.39 : 655,182.48 = 137,375.62 : x
  2. Step 2: Convert to fraction form
    436,809.39/655,182.48 = 137,375.62/x
  3. Step 3: Cross multiply
    436,809.39x = 655,182.48 × 137,375.62
  4. Step 4: Simplify right side
    436,809.39x = 90,006,099,403.14
  5. Step 5: Solve for x
    x = 90,006,099,403.14/436,809.39
  6. Step 6: Final answer
    x = 206,053.49

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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.