Home / 207,579.26-311,387.34-81,228.83

Finding the Fourth Proportional to 207,579.26, 311,387.34 and 81,228.83

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Solution

The fourth proportional to 207,579.26, 311,387.34 and 81,228.83 is: 121,850.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,579.26 : 311,387.34 = 81,228.83 : x
  2. Step 2: Convert to fraction form
    207,579.26/311,387.34 = 81,228.83/x
  3. Step 3: Cross multiply
    207,579.26x = 311,387.34 × 81,228.83
  4. Step 4: Simplify right side
    207,579.26x = 25,293,627,595.77
  5. Step 5: Solve for x
    x = 25,293,627,595.77/207,579.26
  6. Step 6: Final answer
    x = 121,850.46

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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.