Home / 447,309.30-670,734.11-131,725.20

Finding the Fourth Proportional to 447,309.30, 670,734.11 and 131,725.20

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Solution

The fourth proportional to 447,309.30, 670,734.11 and 131,725.20 is: 197,520.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,309.30 : 670,734.11 = 131,725.20 : x
  2. Step 2: Convert to fraction form
    447,309.30/670,734.11 = 131,725.20/x
  3. Step 3: Cross multiply
    447,309.30x = 670,734.11 × 131,725.20
  4. Step 4: Simplify right side
    447,309.30x = 88,352,584,786.57
  5. Step 5: Solve for x
    x = 88,352,584,786.57/447,309.30
  6. Step 6: Final answer
    x = 197,520.12

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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.