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Finding the Fourth Proportional to 222,297.76, 306,770.92 and 121,695.76

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Solution

The fourth proportional to 222,297.76, 306,770.92 and 121,695.76 is: 167,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,297.76 : 306,770.92 = 121,695.76 : x
  2. Step 2: Convert to fraction form
    222,297.76/306,770.92 = 121,695.76/x
  3. Step 3: Cross multiply
    222,297.76x = 306,770.92 × 121,695.76
  4. Step 4: Simplify right side
    222,297.76x = 37,332,720,255.30
  5. Step 5: Solve for x
    x = 37,332,720,255.30/222,297.76
  6. Step 6: Final answer
    x = 167,940.15

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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.