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Finding the Fourth Proportional to 222,014.79, 306,379.77 and 120,039.54

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Solution

The fourth proportional to 222,014.79, 306,379.77 and 120,039.54 is: 165,654.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,014.79 : 306,379.77 = 120,039.54 : x
  2. Step 2: Convert to fraction form
    222,014.79/306,379.77 = 120,039.54/x
  3. Step 3: Cross multiply
    222,014.79x = 306,379.77 × 120,039.54
  4. Step 4: Simplify right side
    222,014.79x = 36,777,685,057.03
  5. Step 5: Solve for x
    x = 36,777,685,057.03/222,014.79
  6. Step 6: Final answer
    x = 165,654.21

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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.