Home / 221,023.20-331,316.10-108,611.40

Finding the Fourth Proportional to 221,023.20, 331,316.10 and 108,611.40

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Solution

The fourth proportional to 221,023.20, 331,316.10 and 108,611.40 is: 162,809.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,023.20 : 331,316.10 = 108,611.40 : x
  2. Step 2: Convert to fraction form
    221,023.20/331,316.10 = 108,611.40/x
  3. Step 3: Cross multiply
    221,023.20x = 331,316.10 × 108,611.40
  4. Step 4: Simplify right side
    221,023.20x = 35,984,705,463.54
  5. Step 5: Solve for x
    x = 35,984,705,463.54/221,023.20
  6. Step 6: Final answer
    x = 162,809.63

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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.