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Finding the Fourth Proportional to 199,019.72, 274,647.22 and 108,375.65

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Solution

The fourth proportional to 199,019.72, 274,647.22 and 108,375.65 is: 149,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,019.72 : 274,647.22 = 108,375.65 : x
  2. Step 2: Convert to fraction form
    199,019.72/274,647.22 = 108,375.65/x
  3. Step 3: Cross multiply
    199,019.72x = 274,647.22 × 108,375.65
  4. Step 4: Simplify right side
    199,019.72x = 29,765,070,988.19
  5. Step 5: Solve for x
    x = 29,765,070,988.19/199,019.72
  6. Step 6: Final answer
    x = 149,558.40

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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.