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Finding the Fourth Proportional to 494,384.80, 741,922.80 and 214,103.20

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Solution

The fourth proportional to 494,384.80, 741,922.80 and 214,103.20 is: 321,304.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,384.80 : 741,922.80 = 214,103.20 : x
  2. Step 2: Convert to fraction form
    494,384.80/741,922.80 = 214,103.20/x
  3. Step 3: Cross multiply
    494,384.80x = 741,922.80 × 214,103.20
  4. Step 4: Simplify right side
    494,384.80x = 158,848,045,632.96
  5. Step 5: Solve for x
    x = 158,848,045,632.96/494,384.80
  6. Step 6: Final answer
    x = 321,304.47

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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.