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Finding the Fourth Proportional to 449.74, 674.81 and 233.47

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Solution

The fourth proportional to 449.74, 674.81 and 233.47 is: 350.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.74 : 674.81 = 233.47 : x
  2. Step 2: Convert to fraction form
    449.74/674.81 = 233.47/x
  3. Step 3: Cross multiply
    449.74x = 674.81 × 233.47
  4. Step 4: Simplify right side
    449.74x = 157,547.89
  5. Step 5: Solve for x
    x = 157,547.89/449.74
  6. Step 6: Final answer
    x = 350.31

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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.