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Finding the Fourth Proportional to 222,369.10, 306,865.63 and 120,393.73

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Solution

The fourth proportional to 222,369.10, 306,865.63 and 120,393.73 is: 166,141.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,369.10 : 306,865.63 = 120,393.73 : x
  2. Step 2: Convert to fraction form
    222,369.10/306,865.63 = 120,393.73/x
  3. Step 3: Cross multiply
    222,369.10x = 306,865.63 × 120,393.73
  4. Step 4: Simplify right side
    222,369.10x = 36,944,697,804.50
  5. Step 5: Solve for x
    x = 36,944,697,804.50/222,369.10
  6. Step 6: Final answer
    x = 166,141.33

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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.