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Finding the Fourth Proportional to 634.26, 951.57 and 543.54

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Solution

The fourth proportional to 634.26, 951.57 and 543.54 is: 815.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.26 : 951.57 = 543.54 : x
  2. Step 2: Convert to fraction form
    634.26/951.57 = 543.54/x
  3. Step 3: Cross multiply
    634.26x = 951.57 × 543.54
  4. Step 4: Simplify right side
    634.26x = 517,216.36
  5. Step 5: Solve for x
    x = 517,216.36/634.26
  6. Step 6: Final answer
    x = 815.46

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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.