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Finding the Fourth Proportional to 445.49, 668.24 and 369.33

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Solution

The fourth proportional to 445.49, 668.24 and 369.33 is: 554.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.49 : 668.24 = 369.33 : x
  2. Step 2: Convert to fraction form
    445.49/668.24 = 369.33/x
  3. Step 3: Cross multiply
    445.49x = 668.24 × 369.33
  4. Step 4: Simplify right side
    445.49x = 246,801.08
  5. Step 5: Solve for x
    x = 246,801.08/445.49
  6. Step 6: Final answer
    x = 554.00

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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.