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Finding the Fourth Proportional to 294.26, 443.03 and 213.66

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Solution

The fourth proportional to 294.26, 443.03 and 213.66 is: 321.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.26 : 443.03 = 213.66 : x
  2. Step 2: Convert to fraction form
    294.26/443.03 = 213.66/x
  3. Step 3: Cross multiply
    294.26x = 443.03 × 213.66
  4. Step 4: Simplify right side
    294.26x = 94,656.72
  5. Step 5: Solve for x
    x = 94,656.72/294.26
  6. Step 6: Final answer
    x = 321.68

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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.