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Finding the Fourth Proportional to 245,729.92, 339,121.20 and 150,221.20

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Solution

The fourth proportional to 245,729.92, 339,121.20 and 150,221.20 is: 207,313.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,729.92 : 339,121.20 = 150,221.20 : x
  2. Step 2: Convert to fraction form
    245,729.92/339,121.20 = 150,221.20/x
  3. Step 3: Cross multiply
    245,729.92x = 339,121.20 × 150,221.20
  4. Step 4: Simplify right side
    245,729.92x = 50,943,193,609.44
  5. Step 5: Solve for x
    x = 50,943,193,609.44/245,729.92
  6. Step 6: Final answer
    x = 207,313.76

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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.