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Finding the Fourth Proportional to 475,246.86, 655,815.60 and 271,289.67

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Solution

The fourth proportional to 475,246.86, 655,815.60 and 271,289.67 is: 374,365.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,246.86 : 655,815.60 = 271,289.67 : x
  2. Step 2: Convert to fraction form
    475,246.86/655,815.60 = 271,289.67/x
  3. Step 3: Cross multiply
    475,246.86x = 655,815.60 × 271,289.67
  4. Step 4: Simplify right side
    475,246.86x = 177,915,997,704.85
  5. Step 5: Solve for x
    x = 177,915,997,704.85/475,246.86
  6. Step 6: Final answer
    x = 374,365.44

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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.