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Finding the Fourth Proportional to 271,919.80, 407,717.70 and 166,814.20

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Solution

The fourth proportional to 271,919.80, 407,717.70 and 166,814.20 is: 250,121.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,919.80 : 407,717.70 = 166,814.20 : x
  2. Step 2: Convert to fraction form
    271,919.80/407,717.70 = 166,814.20/x
  3. Step 3: Cross multiply
    271,919.80x = 407,717.70 × 166,814.20
  4. Step 4: Simplify right side
    271,919.80x = 68,013,101,951.34
  5. Step 5: Solve for x
    x = 68,013,101,951.34/271,919.80
  6. Step 6: Final answer
    x = 250,121.92

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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.