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Finding the Fourth Proportional to 968.35, 1,452.75 and 343.61

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Solution

The fourth proportional to 968.35, 1,452.75 and 343.61 is: 515.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.35 : 1,452.75 = 343.61 : x
  2. Step 2: Convert to fraction form
    968.35/1,452.75 = 343.61/x
  3. Step 3: Cross multiply
    968.35x = 1,452.75 × 343.61
  4. Step 4: Simplify right side
    968.35x = 499,180.41
  5. Step 5: Solve for x
    x = 499,180.41/968.35
  6. Step 6: Final answer
    x = 515.50

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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.