Finding the Fourth Proportional to 324.63, 486.97 and 108.21
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Solution
The fourth proportional to 324.63, 486.97 and 108.21 is: 162.32
Step by Step Solution
- Step 1: Write the proportion equation
324.63 : 486.97 = 108.21 : x - Step 2: Convert to fraction form
324.63/486.97 = 108.21/x - Step 3: Cross multiply
324.63x = 486.97 × 108.21 - Step 4: Simplify right side
324.63x = 52,695.97 - Step 5: Solve for x
x = 52,695.97/324.63 - Step 6: Final answer
x = 162.32
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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.