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Finding the Fourth Proportional to 764.36, 1,146.63 and 244.39

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Solution

The fourth proportional to 764.36, 1,146.63 and 244.39 is: 366.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    764.36 : 1,146.63 = 244.39 : x
  2. Step 2: Convert to fraction form
    764.36/1,146.63 = 244.39/x
  3. Step 3: Cross multiply
    764.36x = 1,146.63 × 244.39
  4. Step 4: Simplify right side
    764.36x = 280,224.91
  5. Step 5: Solve for x
    x = 280,224.91/764.36
  6. Step 6: Final answer
    x = 366.61

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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.