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Finding the Fourth Proportional to 553.44, 834.44 and 516.32

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Solution

The fourth proportional to 553.44, 834.44 and 516.32 is: 778.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.44 : 834.44 = 516.32 : x
  2. Step 2: Convert to fraction form
    553.44/834.44 = 516.32/x
  3. Step 3: Cross multiply
    553.44x = 834.44 × 516.32
  4. Step 4: Simplify right side
    553.44x = 430,838.06
  5. Step 5: Solve for x
    x = 430,838.06/553.44
  6. Step 6: Final answer
    x = 778.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.