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Finding the Fourth Proportional to 397,180.80, 548,121.60 and 227,404.80

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Solution

The fourth proportional to 397,180.80, 548,121.60 and 227,404.80 is: 313,825.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,180.80 : 548,121.60 = 227,404.80 : x
  2. Step 2: Convert to fraction form
    397,180.80/548,121.60 = 227,404.80/x
  3. Step 3: Cross multiply
    397,180.80x = 548,121.60 × 227,404.80
  4. Step 4: Simplify right side
    397,180.80x = 124,645,482,823.68
  5. Step 5: Solve for x
    x = 124,645,482,823.68/397,180.80
  6. Step 6: Final answer
    x = 313,825.55

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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.