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Finding the Fourth Proportional to 896.09, 1,344.35 and 375.80

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Solution

The fourth proportional to 896.09, 1,344.35 and 375.80 is: 563.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.09 : 1,344.35 = 375.80 : x
  2. Step 2: Convert to fraction form
    896.09/1,344.35 = 375.80/x
  3. Step 3: Cross multiply
    896.09x = 1,344.35 × 375.80
  4. Step 4: Simplify right side
    896.09x = 505,206.73
  5. Step 5: Solve for x
    x = 505,206.73/896.09
  6. Step 6: Final answer
    x = 563.79

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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.