Home / 325,043.20-486,614.40-231,731.20

Finding the Fourth Proportional to 325,043.20, 486,614.40 and 231,731.20

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Solution

The fourth proportional to 325,043.20, 486,614.40 and 231,731.20 is: 346,919.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,043.20 : 486,614.40 = 231,731.20 : x
  2. Step 2: Convert to fraction form
    325,043.20/486,614.40 = 231,731.20/x
  3. Step 3: Cross multiply
    325,043.20x = 486,614.40 × 231,731.20
  4. Step 4: Simplify right side
    325,043.20x = 112,763,738,849.28
  5. Step 5: Solve for x
    x = 112,763,738,849.28/325,043.20
  6. Step 6: Final answer
    x = 346,919.24

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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.