Home / 221,026.20-331,320.60-108,614.40

Finding the Fourth Proportional to 221,026.20, 331,320.60 and 108,614.40

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Solution

The fourth proportional to 221,026.20, 331,320.60 and 108,614.40 is: 162,814.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,026.20 : 331,320.60 = 108,614.40 : x
  2. Step 2: Convert to fraction form
    221,026.20/331,320.60 = 108,614.40/x
  3. Step 3: Cross multiply
    221,026.20x = 331,320.60 × 108,614.40
  4. Step 4: Simplify right side
    221,026.20x = 35,986,188,176.64
  5. Step 5: Solve for x
    x = 35,986,188,176.64/221,026.20
  6. Step 6: Final answer
    x = 162,814.13

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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.