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Finding the Fourth Proportional to 449.63, 674.16 and 175.39

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Solution

The fourth proportional to 449.63, 674.16 and 175.39 is: 262.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.63 : 674.16 = 175.39 : x
  2. Step 2: Convert to fraction form
    449.63/674.16 = 175.39/x
  3. Step 3: Cross multiply
    449.63x = 674.16 × 175.39
  4. Step 4: Simplify right side
    449.63x = 118,244.06
  5. Step 5: Solve for x
    x = 118,244.06/449.63
  6. Step 6: Final answer
    x = 262.98

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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.