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Finding the Fourth Proportional to 327,283.34, 490,869.32 and 90,570.56

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Solution

The fourth proportional to 327,283.34, 490,869.32 and 90,570.56 is: 135,840.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,283.34 : 490,869.32 = 90,570.56 : x
  2. Step 2: Convert to fraction form
    327,283.34/490,869.32 = 90,570.56/x
  3. Step 3: Cross multiply
    327,283.34x = 490,869.32 × 90,570.56
  4. Step 4: Simplify right side
    327,283.34x = 44,458,306,292.02
  5. Step 5: Solve for x
    x = 44,458,306,292.02/327,283.34
  6. Step 6: Final answer
    x = 135,840.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.