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Finding the Fourth Proportional to 300,757.20, 415,040.40 and 164,790.60

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Solution

The fourth proportional to 300,757.20, 415,040.40 and 164,790.60 is: 227,408.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,757.20 : 415,040.40 = 164,790.60 : x
  2. Step 2: Convert to fraction form
    300,757.20/415,040.40 = 164,790.60/x
  3. Step 3: Cross multiply
    300,757.20x = 415,040.40 × 164,790.60
  4. Step 4: Simplify right side
    300,757.20x = 68,394,756,540.24
  5. Step 5: Solve for x
    x = 68,394,756,540.24/300,757.20
  6. Step 6: Final answer
    x = 227,408.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.