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Finding the Fourth Proportional to 271,604.80, 408,021.60 and 188,660.80

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Solution

The fourth proportional to 271,604.80, 408,021.60 and 188,660.80 is: 283,417.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,604.80 : 408,021.60 = 188,660.80 : x
  2. Step 2: Convert to fraction form
    271,604.80/408,021.60 = 188,660.80/x
  3. Step 3: Cross multiply
    271,604.80x = 408,021.60 × 188,660.80
  4. Step 4: Simplify right side
    271,604.80x = 76,977,681,473.28
  5. Step 5: Solve for x
    x = 76,977,681,473.28/271,604.80
  6. Step 6: Final answer
    x = 283,417.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.