Home / 312,232.45-430,891.23-191,350.39

Finding the Fourth Proportional to 312,232.45, 430,891.23 and 191,350.39

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Solution

The fourth proportional to 312,232.45, 430,891.23 and 191,350.39 is: 264,069.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,232.45 : 430,891.23 = 191,350.39 : x
  2. Step 2: Convert to fraction form
    312,232.45/430,891.23 = 191,350.39/x
  3. Step 3: Cross multiply
    312,232.45x = 430,891.23 × 191,350.39
  4. Step 4: Simplify right side
    312,232.45x = 82,451,204,908.08
  5. Step 5: Solve for x
    x = 82,451,204,908.08/312,232.45
  6. Step 6: Final answer
    x = 264,069.94

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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.