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Finding the Fourth Proportional to 171,375.57, 257,107.72 and 100,358.21

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Solution

The fourth proportional to 171,375.57, 257,107.72 and 100,358.21 is: 150,563.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,375.57 : 257,107.72 = 100,358.21 : x
  2. Step 2: Convert to fraction form
    171,375.57/257,107.72 = 100,358.21/x
  3. Step 3: Cross multiply
    171,375.57x = 257,107.72 × 100,358.21
  4. Step 4: Simplify right side
    171,375.57x = 25,802,870,556.38
  5. Step 5: Solve for x
    x = 25,802,870,556.38/171,375.57
  6. Step 6: Final answer
    x = 150,563.30

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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.