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Finding the Fourth Proportional to 397,251.50, 548,257.50 and 225,197.46

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Solution

The fourth proportional to 397,251.50, 548,257.50 and 225,197.46 is: 310,801.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,251.50 : 548,257.50 = 225,197.46 : x
  2. Step 2: Convert to fraction form
    397,251.50/548,257.50 = 225,197.46/x
  3. Step 3: Cross multiply
    397,251.50x = 548,257.50 × 225,197.46
  4. Step 4: Simplify right side
    397,251.50x = 123,466,196,425.95
  5. Step 5: Solve for x
    x = 123,466,196,425.95/397,251.50
  6. Step 6: Final answer
    x = 310,801.09

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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.