Home / 311,794.20-430,265.52-197,134.56

Finding the Fourth Proportional to 311,794.20, 430,265.52 and 197,134.56

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Solution

The fourth proportional to 311,794.20, 430,265.52 and 197,134.56 is: 272,039.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,794.20 : 430,265.52 = 197,134.56 : x
  2. Step 2: Convert to fraction form
    311,794.20/430,265.52 = 197,134.56/x
  3. Step 3: Cross multiply
    311,794.20x = 430,265.52 × 197,134.56
  4. Step 4: Simplify right side
    311,794.20x = 84,820,203,968.37
  5. Step 5: Solve for x
    x = 84,820,203,968.37/311,794.20
  6. Step 6: Final answer
    x = 272,039.07

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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.