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Finding the Fourth Proportional to 171,369.90, 257,099.19 and 100,352.54

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Solution

The fourth proportional to 171,369.90, 257,099.19 and 100,352.54 is: 150,554.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,369.90 : 257,099.19 = 100,352.54 : x
  2. Step 2: Convert to fraction form
    171,369.90/257,099.19 = 100,352.54/x
  3. Step 3: Cross multiply
    171,369.90x = 257,099.19 × 100,352.54
  4. Step 4: Simplify right side
    171,369.90x = 25,800,556,748.44
  5. Step 5: Solve for x
    x = 25,800,556,748.44/171,369.90
  6. Step 6: Final answer
    x = 150,554.78

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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.