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Finding the Fourth Proportional to 449.24, 674.11 and 202.36

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Solution

The fourth proportional to 449.24, 674.11 and 202.36 is: 303.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.24 : 674.11 = 202.36 : x
  2. Step 2: Convert to fraction form
    449.24/674.11 = 202.36/x
  3. Step 3: Cross multiply
    449.24x = 674.11 × 202.36
  4. Step 4: Simplify right side
    449.24x = 136,411.47
  5. Step 5: Solve for x
    x = 136,411.47/449.24
  6. Step 6: Final answer
    x = 303.65

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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.