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Finding the Fourth Proportional to 475,247.73, 655,816.78 and 271,290.54

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Solution

The fourth proportional to 475,247.73, 655,816.78 and 271,290.54 is: 374,366.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,247.73 : 655,816.78 = 271,290.54 : x
  2. Step 2: Convert to fraction form
    475,247.73/655,816.78 = 271,290.54/x
  3. Step 3: Cross multiply
    475,247.73x = 655,816.78 × 271,290.54
  4. Step 4: Simplify right side
    475,247.73x = 177,916,888,578.20
  5. Step 5: Solve for x
    x = 177,916,888,578.20/475,247.73
  6. Step 6: Final answer
    x = 374,366.62

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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.