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Finding the Fourth Proportional to 505,375.09, 758,059.54 and 126,293.87

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Solution

The fourth proportional to 505,375.09, 758,059.54 and 126,293.87 is: 189,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,375.09 : 758,059.54 = 126,293.87 : x
  2. Step 2: Convert to fraction form
    505,375.09/758,059.54 = 126,293.87/x
  3. Step 3: Cross multiply
    505,375.09x = 758,059.54 × 126,293.87
  4. Step 4: Simplify right side
    505,375.09x = 95,738,274,576.43
  5. Step 5: Solve for x
    x = 95,738,274,576.43/505,375.09
  6. Step 6: Final answer
    x = 189,440.04

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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.