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Finding the Fourth Proportional to 397,170.44, 548,081.79 and 227,371.76

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Solution

The fourth proportional to 397,170.44, 548,081.79 and 227,371.76 is: 313,765.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,170.44 : 548,081.79 = 227,371.76 : x
  2. Step 2: Convert to fraction form
    397,170.44/548,081.79 = 227,371.76/x
  3. Step 3: Cross multiply
    397,170.44x = 548,081.79 × 227,371.76
  4. Step 4: Simplify right side
    397,170.44x = 124,618,320,957.47
  5. Step 5: Solve for x
    x = 124,618,320,957.47/397,170.44
  6. Step 6: Final answer
    x = 313,765.35

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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.