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Finding the Fourth Proportional to 449.85, 674.49 and 175.70

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Solution

The fourth proportional to 449.85, 674.49 and 175.70 is: 263.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.85 : 674.49 = 175.70 : x
  2. Step 2: Convert to fraction form
    449.85/674.49 = 175.70/x
  3. Step 3: Cross multiply
    449.85x = 674.49 × 175.70
  4. Step 4: Simplify right side
    449.85x = 118,510.24
  5. Step 5: Solve for x
    x = 118,510.24/449.85
  6. Step 6: Final answer
    x = 263.44

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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.