Finding the Fourth Proportional to 324.09, 446.99 and 231.14
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Solution
The fourth proportional to 324.09, 446.99 and 231.14 is: 318.79
Step by Step Solution
- Step 1: Write the proportion equation
324.09 : 446.99 = 231.14 : x - Step 2: Convert to fraction form
324.09/446.99 = 231.14/x - Step 3: Cross multiply
324.09x = 446.99 × 231.14 - Step 4: Simplify right side
324.09x = 103,317.23 - Step 5: Solve for x
x = 103,317.23/324.09 - Step 6: Final answer
x = 318.79
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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.