Home / 311,629.68-429,842.52-192,190.32

Finding the Fourth Proportional to 311,629.68, 429,842.52 and 192,190.32

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Solution

The fourth proportional to 311,629.68, 429,842.52 and 192,190.32 is: 265,095.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,629.68 : 429,842.52 = 192,190.32 : x
  2. Step 2: Convert to fraction form
    311,629.68/429,842.52 = 192,190.32/x
  3. Step 3: Cross multiply
    311,629.68x = 429,842.52 × 192,190.32
  4. Step 4: Simplify right side
    311,629.68x = 82,611,571,468.41
  5. Step 5: Solve for x
    x = 82,611,571,468.41/311,629.68
  6. Step 6: Final answer
    x = 265,095.33

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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.