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Finding the Fourth Proportional to 303,987.60, 419,504.52 and 166,166.70

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Solution

The fourth proportional to 303,987.60, 419,504.52 and 166,166.70 is: 229,310.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,987.60 : 419,504.52 = 166,166.70 : x
  2. Step 2: Convert to fraction form
    303,987.60/419,504.52 = 166,166.70/x
  3. Step 3: Cross multiply
    303,987.60x = 419,504.52 × 166,166.70
  4. Step 4: Simplify right side
    303,987.60x = 69,707,681,723.48
  5. Step 5: Solve for x
    x = 69,707,681,723.48/303,987.60
  6. Step 6: Final answer
    x = 229,310.94

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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.