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Finding the Fourth Proportional to 253,398.56, 380,348.88 and 225,120.56

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Solution

The fourth proportional to 253,398.56, 380,348.88 and 225,120.56 is: 337,903.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,398.56 : 380,348.88 = 225,120.56 : x
  2. Step 2: Convert to fraction form
    253,398.56/380,348.88 = 225,120.56/x
  3. Step 3: Cross multiply
    253,398.56x = 380,348.88 × 225,120.56
  4. Step 4: Simplify right side
    253,398.56x = 85,624,352,860.97
  5. Step 5: Solve for x
    x = 85,624,352,860.97/253,398.56
  6. Step 6: Final answer
    x = 337,903.87

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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.