Home / 447,308.80-670,733.36-131,724.70

Finding the Fourth Proportional to 447,308.80, 670,733.36 and 131,724.70

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Solution

The fourth proportional to 447,308.80, 670,733.36 and 131,724.70 is: 197,519.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,308.80 : 670,733.36 = 131,724.70 : x
  2. Step 2: Convert to fraction form
    447,308.80/670,733.36 = 131,724.70/x
  3. Step 3: Cross multiply
    447,308.80x = 670,733.36 × 131,724.70
  4. Step 4: Simplify right side
    447,308.80x = 88,352,150,625.99
  5. Step 5: Solve for x
    x = 88,352,150,625.99/447,308.80
  6. Step 6: Final answer
    x = 197,519.37

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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.