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Finding the Fourth Proportional to 475,243.86, 655,811.45 and 271,286.67

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Solution

The fourth proportional to 475,243.86, 655,811.45 and 271,286.67 is: 374,361.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,243.86 : 655,811.45 = 271,286.67 : x
  2. Step 2: Convert to fraction form
    475,243.86/655,811.45 = 271,286.67/x
  3. Step 3: Cross multiply
    475,243.86x = 655,811.45 × 271,286.67
  4. Step 4: Simplify right side
    475,243.86x = 177,912,908,064.54
  5. Step 5: Solve for x
    x = 177,912,908,064.54/475,243.86
  6. Step 6: Final answer
    x = 374,361.29

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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.