Finding the Fourth Proportional to 324.44, 486.97 and 216.31
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Solution
The fourth proportional to 324.44, 486.97 and 216.31 is: 324.66
Step by Step Solution
- Step 1: Write the proportion equation
324.44 : 486.97 = 216.31 : x - Step 2: Convert to fraction form
324.44/486.97 = 216.31/x - Step 3: Cross multiply
324.44x = 486.97 × 216.31 - Step 4: Simplify right side
324.44x = 105,334.05 - Step 5: Solve for x
x = 105,334.05/324.44 - Step 6: Final answer
x = 324.66
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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.