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Finding the Fourth Proportional to 243,120.62, 335,194.55 and 199,351.93

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Solution

The fourth proportional to 243,120.62, 335,194.55 and 199,351.93 is: 274,849.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,120.62 : 335,194.55 = 199,351.93 : x
  2. Step 2: Convert to fraction form
    243,120.62/335,194.55 = 199,351.93/x
  3. Step 3: Cross multiply
    243,120.62x = 335,194.55 × 199,351.93
  4. Step 4: Simplify right side
    243,120.62x = 66,821,680,467.98
  5. Step 5: Solve for x
    x = 66,821,680,467.98/243,120.62
  6. Step 6: Final answer
    x = 274,849.92

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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.