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Finding the Fourth Proportional to 222,168.56, 306,591.35 and 120,193.74

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Solution

The fourth proportional to 222,168.56, 306,591.35 and 120,193.74 is: 165,866.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,168.56 : 306,591.35 = 120,193.74 : x
  2. Step 2: Convert to fraction form
    222,168.56/306,591.35 = 120,193.74/x
  3. Step 3: Cross multiply
    222,168.56x = 306,591.35 × 120,193.74
  4. Step 4: Simplify right side
    222,168.56x = 36,850,360,407.18
  5. Step 5: Solve for x
    x = 36,850,360,407.18/222,168.56
  6. Step 6: Final answer
    x = 165,866.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.