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Finding the Fourth Proportional to 273,435.38, 410,150.51 and 86,446.90

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Solution

The fourth proportional to 273,435.38, 410,150.51 and 86,446.90 is: 129,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,435.38 : 410,150.51 = 86,446.90 : x
  2. Step 2: Convert to fraction form
    273,435.38/410,150.51 = 86,446.90/x
  3. Step 3: Cross multiply
    273,435.38x = 410,150.51 × 86,446.90
  4. Step 4: Simplify right side
    273,435.38x = 35,456,240,122.92
  5. Step 5: Solve for x
    x = 35,456,240,122.92/273,435.38
  6. Step 6: Final answer
    x = 129,669.54

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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.