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Finding the Fourth Proportional to 449,364.70, 674,010.18 and 133,821.64

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Solution

The fourth proportional to 449,364.70, 674,010.18 and 133,821.64 is: 200,721.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,364.70 : 674,010.18 = 133,821.64 : x
  2. Step 2: Convert to fraction form
    449,364.70/674,010.18 = 133,821.64/x
  3. Step 3: Cross multiply
    449,364.70x = 674,010.18 × 133,821.64
  4. Step 4: Simplify right side
    449,364.70x = 90,197,147,664.30
  5. Step 5: Solve for x
    x = 90,197,147,664.30/449,364.70
  6. Step 6: Final answer
    x = 200,721.48

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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.