Home / 220,509.45-330,841.93-80,282.25

Finding the Fourth Proportional to 220,509.45, 330,841.93 and 80,282.25

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Solution

The fourth proportional to 220,509.45, 330,841.93 and 80,282.25 is: 120,451.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,509.45 : 330,841.93 = 80,282.25 : x
  2. Step 2: Convert to fraction form
    220,509.45/330,841.93 = 80,282.25/x
  3. Step 3: Cross multiply
    220,509.45x = 330,841.93 × 80,282.25
  4. Step 4: Simplify right side
    220,509.45x = 26,560,734,534.74
  5. Step 5: Solve for x
    x = 26,560,734,534.74/220,509.45
  6. Step 6: Final answer
    x = 120,451.68

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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.