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Finding the Fourth Proportional to 301.75, 450.68 and 299.63

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Solution

The fourth proportional to 301.75, 450.68 and 299.63 is: 447.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.75 : 450.68 = 299.63 : x
  2. Step 2: Convert to fraction form
    301.75/450.68 = 299.63/x
  3. Step 3: Cross multiply
    301.75x = 450.68 × 299.63
  4. Step 4: Simplify right side
    301.75x = 135,036.88
  5. Step 5: Solve for x
    x = 135,036.88/301.75
  6. Step 6: Final answer
    x = 447.52

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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.