Home / 320,831.88-481,247.22-131,380.56

Finding the Fourth Proportional to 320,831.88, 481,247.22 and 131,380.56

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Solution

The fourth proportional to 320,831.88, 481,247.22 and 131,380.56 is: 197,070.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,831.88 : 481,247.22 = 131,380.56 : x
  2. Step 2: Convert to fraction form
    320,831.88/481,247.22 = 131,380.56/x
  3. Step 3: Cross multiply
    320,831.88x = 481,247.22 × 131,380.56
  4. Step 4: Simplify right side
    320,831.88x = 63,226,529,262.04
  5. Step 5: Solve for x
    x = 63,226,529,262.04/320,831.88
  6. Step 6: Final answer
    x = 197,070.59

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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.