Home / 325,571.32-489,105.54-229,729.18

Finding the Fourth Proportional to 325,571.32, 489,105.54 and 229,729.18

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Solution

The fourth proportional to 325,571.32, 489,105.54 and 229,729.18 is: 345,121.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,571.32 : 489,105.54 = 229,729.18 : x
  2. Step 2: Convert to fraction form
    325,571.32/489,105.54 = 229,729.18/x
  3. Step 3: Cross multiply
    325,571.32x = 489,105.54 × 229,729.18
  4. Step 4: Simplify right side
    325,571.32x = 112,361,814,637.66
  5. Step 5: Solve for x
    x = 112,361,814,637.66/325,571.32
  6. Step 6: Final answer
    x = 345,121.97

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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.