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Finding the Fourth Proportional to 436,253.31, 654,379.96 and 136,735.46

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Solution

The fourth proportional to 436,253.31, 654,379.96 and 136,735.46 is: 205,103.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,253.31 : 654,379.96 = 136,735.46 : x
  2. Step 2: Convert to fraction form
    436,253.31/654,379.96 = 136,735.46/x
  3. Step 3: Cross multiply
    436,253.31x = 654,379.96 × 136,735.46
  4. Step 4: Simplify right side
    436,253.31x = 89,476,944,845.38
  5. Step 5: Solve for x
    x = 89,476,944,845.38/436,253.31
  6. Step 6: Final answer
    x = 205,103.19

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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.