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Finding the Fourth Proportional to 896.77, 1,345 and 247.33

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Solution

The fourth proportional to 896.77, 1,345 and 247.33 is: 370.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.77 : 1,345 = 247.33 : x
  2. Step 2: Convert to fraction form
    896.77/1,345 = 247.33/x
  3. Step 3: Cross multiply
    896.77x = 1,345 × 247.33
  4. Step 4: Simplify right side
    896.77x = 332,658.85
  5. Step 5: Solve for x
    x = 332,658.85/896.77
  6. Step 6: Final answer
    x = 370.95

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Double scale
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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.