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Finding the Fourth Proportional to 220,820.60, 331,230.90 and 110,228.60

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Solution

The fourth proportional to 220,820.60, 331,230.90 and 110,228.60 is: 165,342.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,820.60 : 331,230.90 = 110,228.60 : x
  2. Step 2: Convert to fraction form
    220,820.60/331,230.90 = 110,228.60/x
  3. Step 3: Cross multiply
    220,820.60x = 331,230.90 × 110,228.60
  4. Step 4: Simplify right side
    220,820.60x = 36,511,118,383.74
  5. Step 5: Solve for x
    x = 36,511,118,383.74/220,820.60
  6. Step 6: Final answer
    x = 165,342.90

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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.