Finding the Fourth Proportional to 324.92, 486.97 and 142.13
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Solution
The fourth proportional to 324.92, 486.97 and 142.13 is: 213.02
Step by Step Solution
- Step 1: Write the proportion equation
324.92 : 486.97 = 142.13 : x - Step 2: Convert to fraction form
324.92/486.97 = 142.13/x - Step 3: Cross multiply
324.92x = 486.97 × 142.13 - Step 4: Simplify right side
324.92x = 69,213.05 - Step 5: Solve for x
x = 69,213.05/324.92 - Step 6: Final answer
x = 213.02
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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.