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Finding the Fourth Proportional to 449.35, 672.94 and 304.63

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Solution

The fourth proportional to 449.35, 672.94 and 304.63 is: 456.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.35 : 672.94 = 304.63 : x
  2. Step 2: Convert to fraction form
    449.35/672.94 = 304.63/x
  3. Step 3: Cross multiply
    449.35x = 672.94 × 304.63
  4. Step 4: Simplify right side
    449.35x = 204,997.71
  5. Step 5: Solve for x
    x = 204,997.71/449.35
  6. Step 6: Final answer
    x = 456.21

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.