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Finding the Fourth Proportional to 297.10, 443.93 and 214.44

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Solution

The fourth proportional to 297.10, 443.93 and 214.44 is: 320.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.10 : 443.93 = 214.44 : x
  2. Step 2: Convert to fraction form
    297.10/443.93 = 214.44/x
  3. Step 3: Cross multiply
    297.10x = 443.93 × 214.44
  4. Step 4: Simplify right side
    297.10x = 95,197.32
  5. Step 5: Solve for x
    x = 95,197.32/297.10
  6. Step 6: Final answer
    x = 320.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.