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Finding the Fourth Proportional to 449.63, 674.44 and 175.91

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Solution

The fourth proportional to 449.63, 674.44 and 175.91 is: 263.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.63 : 674.44 = 175.91 : x
  2. Step 2: Convert to fraction form
    449.63/674.44 = 175.91/x
  3. Step 3: Cross multiply
    449.63x = 674.44 × 175.91
  4. Step 4: Simplify right side
    449.63x = 118,640.74
  5. Step 5: Solve for x
    x = 118,640.74/449.63
  6. Step 6: Final answer
    x = 263.86

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Why These Related Problems?

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