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Finding the Fourth Proportional to 634.48, 949.62 and 341.56

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Solution

The fourth proportional to 634.48, 949.62 and 341.56 is: 511.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.48 : 949.62 = 341.56 : x
  2. Step 2: Convert to fraction form
    634.48/949.62 = 341.56/x
  3. Step 3: Cross multiply
    634.48x = 949.62 × 341.56
  4. Step 4: Simplify right side
    634.48x = 324,352.21
  5. Step 5: Solve for x
    x = 324,352.21/634.48
  6. Step 6: Final answer
    x = 511.21

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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.