Home / 220,645.14-331,047.90-108,313.56

Finding the Fourth Proportional to 220,645.14, 331,047.90 and 108,313.56

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Solution

The fourth proportional to 220,645.14, 331,047.90 and 108,313.56 is: 162,509.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,645.14 : 331,047.90 = 108,313.56 : x
  2. Step 2: Convert to fraction form
    220,645.14/331,047.90 = 108,313.56/x
  3. Step 3: Cross multiply
    220,645.14x = 331,047.90 × 108,313.56
  4. Step 4: Simplify right side
    220,645.14x = 35,856,976,579.52
  5. Step 5: Solve for x
    x = 35,856,976,579.52/220,645.14
  6. Step 6: Final answer
    x = 162,509.70

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1.5x scale

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.