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Finding the Fourth Proportional to 214,107.81, 321,037.22 and 80,998.48

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Solution

The fourth proportional to 214,107.81, 321,037.22 and 80,998.48 is: 121,450.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,107.81 : 321,037.22 = 80,998.48 : x
  2. Step 2: Convert to fraction form
    214,107.81/321,037.22 = 80,998.48/x
  3. Step 3: Cross multiply
    214,107.81x = 321,037.22 × 80,998.48
  4. Step 4: Simplify right side
    214,107.81x = 26,003,527,447.22
  5. Step 5: Solve for x
    x = 26,003,527,447.22/214,107.81
  6. Step 6: Final answer
    x = 121,450.63

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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.