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Finding the Fourth Proportional to 171,147.20, 256,745.10 and 52,806.20

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Solution

The fourth proportional to 171,147.20, 256,745.10 and 52,806.20 is: 79,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,147.20 : 256,745.10 = 52,806.20 : x
  2. Step 2: Convert to fraction form
    171,147.20/256,745.10 = 52,806.20/x
  3. Step 3: Cross multiply
    171,147.20x = 256,745.10 × 52,806.20
  4. Step 4: Simplify right side
    171,147.20x = 13,557,733,099.62
  5. Step 5: Solve for x
    x = 13,557,733,099.62/171,147.20
  6. Step 6: Final answer
    x = 79,216.80

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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.