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Finding the Fourth Proportional to 306,099.44, 422,396.76 and 170,124.56

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Solution

The fourth proportional to 306,099.44, 422,396.76 and 170,124.56 is: 234,760.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,099.44 : 422,396.76 = 170,124.56 : x
  2. Step 2: Convert to fraction form
    306,099.44/422,396.76 = 170,124.56/x
  3. Step 3: Cross multiply
    306,099.44x = 422,396.76 × 170,124.56
  4. Step 4: Simplify right side
    306,099.44x = 71,860,062,940.43
  5. Step 5: Solve for x
    x = 71,860,062,940.43/306,099.44
  6. Step 6: Final answer
    x = 234,760.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.