Home / 320,921.76-481,849.20-236,940.96

Finding the Fourth Proportional to 320,921.76, 481,849.20 and 236,940.96

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Solution

The fourth proportional to 320,921.76, 481,849.20 and 236,940.96 is: 355,755.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,921.76 : 481,849.20 = 236,940.96 : x
  2. Step 2: Convert to fraction form
    320,921.76/481,849.20 = 236,940.96/x
  3. Step 3: Cross multiply
    320,921.76x = 481,849.20 × 236,940.96
  4. Step 4: Simplify right side
    320,921.76x = 114,169,812,023.23
  5. Step 5: Solve for x
    x = 114,169,812,023.23/320,921.76
  6. Step 6: Final answer
    x = 355,755.91

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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.