Home / 325,723.22-489,125.81-219,788.58

Finding the Fourth Proportional to 325,723.22, 489,125.81 and 219,788.58

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Solution

The fourth proportional to 325,723.22, 489,125.81 and 219,788.58 is: 330,047.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,723.22 : 489,125.81 = 219,788.58 : x
  2. Step 2: Convert to fraction form
    325,723.22/489,125.81 = 219,788.58/x
  3. Step 3: Cross multiply
    325,723.22x = 489,125.81 × 219,788.58
  4. Step 4: Simplify right side
    325,723.22x = 107,504,267,221.25
  5. Step 5: Solve for x
    x = 107,504,267,221.25/325,723.22
  6. Step 6: Final answer
    x = 330,047.91

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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.