Finding the Fourth Proportional to 324.42, 486.41 and 161.99
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Solution
The fourth proportional to 324.42, 486.41 and 161.99 is: 242.87
Step by Step Solution
- Step 1: Write the proportion equation
324.42 : 486.41 = 161.99 : x - Step 2: Convert to fraction form
324.42/486.41 = 161.99/x - Step 3: Cross multiply
324.42x = 486.41 × 161.99 - Step 4: Simplify right side
324.42x = 78,793.96 - Step 5: Solve for x
x = 78,793.96/324.42 - Step 6: Final answer
x = 242.87
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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.