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Finding the Fourth Proportional to 436,171.09, 654,255.82 and 136,674.63

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Solution

The fourth proportional to 436,171.09, 654,255.82 and 136,674.63 is: 205,011.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,171.09 : 654,255.82 = 136,674.63 : x
  2. Step 2: Convert to fraction form
    436,171.09/654,255.82 = 136,674.63/x
  3. Step 3: Cross multiply
    436,171.09x = 654,255.82 × 136,674.63
  4. Step 4: Simplify right side
    436,171.09x = 89,420,172,123.85
  5. Step 5: Solve for x
    x = 89,420,172,123.85/436,171.09
  6. Step 6: Final answer
    x = 205,011.69

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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.