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Finding the Fourth Proportional to 304,578.72, 419,379.81 and 270,528.04

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Solution

The fourth proportional to 304,578.72, 419,379.81 and 270,528.04 is: 372,494.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,578.72 : 419,379.81 = 270,528.04 : x
  2. Step 2: Convert to fraction form
    304,578.72/419,379.81 = 270,528.04/x
  3. Step 3: Cross multiply
    304,578.72x = 419,379.81 × 270,528.04
  4. Step 4: Simplify right side
    304,578.72x = 113,453,998,014.87
  5. Step 5: Solve for x
    x = 113,453,998,014.87/304,578.72
  6. Step 6: Final answer
    x = 372,494.83

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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.