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Finding the Fourth Proportional to 225,601.20, 338,401.80 and 131,122.80

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Solution

The fourth proportional to 225,601.20, 338,401.80 and 131,122.80 is: 196,684.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,601.20 : 338,401.80 = 131,122.80 : x
  2. Step 2: Convert to fraction form
    225,601.20/338,401.80 = 131,122.80/x
  3. Step 3: Cross multiply
    225,601.20x = 338,401.80 × 131,122.80
  4. Step 4: Simplify right side
    225,601.20x = 44,372,191,541.04
  5. Step 5: Solve for x
    x = 44,372,191,541.04/225,601.20
  6. Step 6: Final answer
    x = 196,684.20

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1.5x scale

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.