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Finding the Fourth Proportional to 301,076.70, 451,615.05 and 252,087.90

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Solution

The fourth proportional to 301,076.70, 451,615.05 and 252,087.90 is: 378,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,076.70 : 451,615.05 = 252,087.90 : x
  2. Step 2: Convert to fraction form
    301,076.70/451,615.05 = 252,087.90/x
  3. Step 3: Cross multiply
    301,076.70x = 451,615.05 × 252,087.90
  4. Step 4: Simplify right side
    301,076.70x = 113,846,689,562.90
  5. Step 5: Solve for x
    x = 113,846,689,562.90/301,076.70
  6. Step 6: Final answer
    x = 378,131.85

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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.