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Finding the Fourth Proportional to 447.85, 674.83 and 368.47

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Solution

The fourth proportional to 447.85, 674.83 and 368.47 is: 555.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    447.85 : 674.83 = 368.47 : x
  2. Step 2: Convert to fraction form
    447.85/674.83 = 368.47/x
  3. Step 3: Cross multiply
    447.85x = 674.83 × 368.47
  4. Step 4: Simplify right side
    447.85x = 248,651.24
  5. Step 5: Solve for x
    x = 248,651.24/447.85
  6. Step 6: Final answer
    x = 555.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.