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Finding the Fourth Proportional to 634.40, 951.26 and 374.48

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Solution

The fourth proportional to 634.40, 951.26 and 374.48 is: 561.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.40 : 951.26 = 374.48 : x
  2. Step 2: Convert to fraction form
    634.40/951.26 = 374.48/x
  3. Step 3: Cross multiply
    634.40x = 951.26 × 374.48
  4. Step 4: Simplify right side
    634.40x = 356,221.22
  5. Step 5: Solve for x
    x = 356,221.22/634.40
  6. Step 6: Final answer
    x = 561.51

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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.