Finding the Fourth Proportional to 324.21, 447.42 and 193.19
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Solution
The fourth proportional to 324.21, 447.42 and 193.19 is: 266.61
Step by Step Solution
- Step 1: Write the proportion equation
324.21 : 447.42 = 193.19 : x - Step 2: Convert to fraction form
324.21/447.42 = 193.19/x - Step 3: Cross multiply
324.21x = 447.42 × 193.19 - Step 4: Simplify right side
324.21x = 86,438.19 - Step 5: Solve for x
x = 86,438.19/324.21 - Step 6: Final answer
x = 266.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.