Home / 221,022.20-331,314.60-108,610.40

Finding the Fourth Proportional to 221,022.20, 331,314.60 and 108,610.40

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Solution

The fourth proportional to 221,022.20, 331,314.60 and 108,610.40 is: 162,808.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,022.20 : 331,314.60 = 108,610.40 : x
  2. Step 2: Convert to fraction form
    221,022.20/331,314.60 = 108,610.40/x
  3. Step 3: Cross multiply
    221,022.20x = 331,314.60 × 108,610.40
  4. Step 4: Simplify right side
    221,022.20x = 35,984,211,231.84
  5. Step 5: Solve for x
    x = 35,984,211,231.84/221,022.20
  6. Step 6: Final answer
    x = 162,808.13

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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.