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Finding the Fourth Proportional to 222,359.93, 306,859.19 and 120,387.62

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Solution

The fourth proportional to 222,359.93, 306,859.19 and 120,387.62 is: 166,136.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,359.93 : 306,859.19 = 120,387.62 : x
  2. Step 2: Convert to fraction form
    222,359.93/306,859.19 = 120,387.62/x
  3. Step 3: Cross multiply
    222,359.93x = 306,859.19 × 120,387.62
  4. Step 4: Simplify right side
    222,359.93x = 36,942,045,998.35
  5. Step 5: Solve for x
    x = 36,942,045,998.35/222,359.93
  6. Step 6: Final answer
    x = 166,136.25

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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.