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Finding the Fourth Proportional to 220,131.80, 330,327.30 and 79,904.60

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Solution

The fourth proportional to 220,131.80, 330,327.30 and 79,904.60 is: 119,903.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,131.80 : 330,327.30 = 79,904.60 : x
  2. Step 2: Convert to fraction form
    220,131.80/330,327.30 = 79,904.60/x
  3. Step 3: Cross multiply
    220,131.80x = 330,327.30 × 79,904.60
  4. Step 4: Simplify right side
    220,131.80x = 26,394,670,775.58
  5. Step 5: Solve for x
    x = 26,394,670,775.58/220,131.80
  6. Step 6: Final answer
    x = 119,903.94

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1.5x scale

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.