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Finding the Fourth Proportional to 896.48, 1,344.80 and 247.22

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Solution

The fourth proportional to 896.48, 1,344.80 and 247.22 is: 370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.48 : 1,344.80 = 247.22 : x
  2. Step 2: Convert to fraction form
    896.48/1,344.80 = 247.22/x
  3. Step 3: Cross multiply
    896.48x = 1,344.80 × 247.22
  4. Step 4: Simplify right side
    896.48x = 332,460.39
  5. Step 5: Solve for x
    x = 332,460.39/896.48
  6. Step 6: Final answer
    x = 370.85

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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.