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Finding the Fourth Proportional to 304.90, 454.60 and 299.43

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Solution

The fourth proportional to 304.90, 454.60 and 299.43 is: 446.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.90 : 454.60 = 299.43 : x
  2. Step 2: Convert to fraction form
    304.90/454.60 = 299.43/x
  3. Step 3: Cross multiply
    304.90x = 454.60 × 299.43
  4. Step 4: Simplify right side
    304.90x = 136,120.88
  5. Step 5: Solve for x
    x = 136,120.88/304.90
  6. Step 6: Final answer
    x = 446.44

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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.