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Finding the Fourth Proportional to 447.38, 672.30 and 369.62

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Solution

The fourth proportional to 447.38, 672.30 and 369.62 is: 555.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.38 : 672.30 = 369.62 : x
  2. Step 2: Convert to fraction form
    447.38/672.30 = 369.62/x
  3. Step 3: Cross multiply
    447.38x = 672.30 × 369.62
  4. Step 4: Simplify right side
    447.38x = 248,495.53
  5. Step 5: Solve for x
    x = 248,495.53/447.38
  6. Step 6: Final answer
    x = 555.45

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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.