Home / 325,831.20-488,771.10-115,441.80

Finding the Fourth Proportional to 325,831.20, 488,771.10 and 115,441.80

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Solution

The fourth proportional to 325,831.20, 488,771.10 and 115,441.80 is: 173,171.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,831.20 : 488,771.10 = 115,441.80 : x
  2. Step 2: Convert to fraction form
    325,831.20/488,771.10 = 115,441.80/x
  3. Step 3: Cross multiply
    325,831.20x = 488,771.10 × 115,441.80
  4. Step 4: Simplify right side
    325,831.20x = 56,424,615,571.98
  5. Step 5: Solve for x
    x = 56,424,615,571.98/325,831.20
  6. Step 6: Final answer
    x = 173,171.31

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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.