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Finding the Fourth Proportional to 220,468.80, 330,832.80 and 80,241.60

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Solution

The fourth proportional to 220,468.80, 330,832.80 and 80,241.60 is: 120,409.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,468.80 : 330,832.80 = 80,241.60 : x
  2. Step 2: Convert to fraction form
    220,468.80/330,832.80 = 80,241.60/x
  3. Step 3: Cross multiply
    220,468.80x = 330,832.80 × 80,241.60
  4. Step 4: Simplify right side
    220,468.80x = 26,546,553,204.48
  5. Step 5: Solve for x
    x = 26,546,553,204.48/220,468.80
  6. Step 6: Final answer
    x = 120,409.57

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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.