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Finding the Fourth Proportional to 243,272.87, 335,874.53 and 217,734.95

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Solution

The fourth proportional to 243,272.87, 335,874.53 and 217,734.95 is: 300,615.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,272.87 : 335,874.53 = 217,734.95 : x
  2. Step 2: Convert to fraction form
    243,272.87/335,874.53 = 217,734.95/x
  3. Step 3: Cross multiply
    243,272.87x = 335,874.53 × 217,734.95
  4. Step 4: Simplify right side
    243,272.87x = 73,131,621,227.78
  5. Step 5: Solve for x
    x = 73,131,621,227.78/243,272.87
  6. Step 6: Final answer
    x = 300,615.61

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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.