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Finding the Fourth Proportional to 220,612.44, 330,852.90 and 80,338.26

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Solution

The fourth proportional to 220,612.44, 330,852.90 and 80,338.26 is: 120,483.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,612.44 : 330,852.90 = 80,338.26 : x
  2. Step 2: Convert to fraction form
    220,612.44/330,852.90 = 80,338.26/x
  3. Step 3: Cross multiply
    220,612.44x = 330,852.90 × 80,338.26
  4. Step 4: Simplify right side
    220,612.44x = 26,580,146,301.95
  5. Step 5: Solve for x
    x = 26,580,146,301.95/220,612.44
  6. Step 6: Final answer
    x = 120,483.44

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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.