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Finding the Fourth Proportional to 253,989.42, 381,047.48 and 179,255.55

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Solution

The fourth proportional to 253,989.42, 381,047.48 and 179,255.55 is: 268,928.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,989.42 : 381,047.48 = 179,255.55 : x
  2. Step 2: Convert to fraction form
    253,989.42/381,047.48 = 179,255.55/x
  3. Step 3: Cross multiply
    253,989.42x = 381,047.48 × 179,255.55
  4. Step 4: Simplify right side
    253,989.42x = 68,304,874,650.90
  5. Step 5: Solve for x
    x = 68,304,874,650.90/253,989.42
  6. Step 6: Final answer
    x = 268,928.03

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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.