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Finding the Fourth Proportional to 171,227.70, 257,072.40 and 100,223.10

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Solution

The fourth proportional to 171,227.70, 257,072.40 and 100,223.10 is: 150,469.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,227.70 : 257,072.40 = 100,223.10 : x
  2. Step 2: Convert to fraction form
    171,227.70/257,072.40 = 100,223.10/x
  3. Step 3: Cross multiply
    171,227.70x = 257,072.40 × 100,223.10
  4. Step 4: Simplify right side
    171,227.70x = 25,764,592,852.44
  5. Step 5: Solve for x
    x = 25,764,592,852.44/171,227.70
  6. Step 6: Final answer
    x = 150,469.77

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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.