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Finding the Fourth Proportional to 629.39, 944.25 and 369.61

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Solution

The fourth proportional to 629.39, 944.25 and 369.61 is: 554.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.39 : 944.25 = 369.61 : x
  2. Step 2: Convert to fraction form
    629.39/944.25 = 369.61/x
  3. Step 3: Cross multiply
    629.39x = 944.25 × 369.61
  4. Step 4: Simplify right side
    629.39x = 349,001.88
  5. Step 5: Solve for x
    x = 349,001.88/629.39
  6. Step 6: Final answer
    x = 554.51

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1.5x scale

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.