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Finding the Fourth Proportional to 222,228.50, 306,672.99 and 120,251.72

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Solution

The fourth proportional to 222,228.50, 306,672.99 and 120,251.72 is: 165,946.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,228.50 : 306,672.99 = 120,251.72 : x
  2. Step 2: Convert to fraction form
    222,228.50/306,672.99 = 120,251.72/x
  3. Step 3: Cross multiply
    222,228.50x = 306,672.99 × 120,251.72
  4. Step 4: Simplify right side
    222,228.50x = 36,877,954,840.78
  5. Step 5: Solve for x
    x = 36,877,954,840.78/222,228.50
  6. Step 6: Final answer
    x = 165,946.11

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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.