Finding the Fourth Proportional to 324.64, 486.99 and 108.19
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Solution
The fourth proportional to 324.64, 486.99 and 108.19 is: 162.29
Step by Step Solution
- Step 1: Write the proportion equation
324.64 : 486.99 = 108.19 : x - Step 2: Convert to fraction form
324.64/486.99 = 108.19/x - Step 3: Cross multiply
324.64x = 486.99 × 108.19 - Step 4: Simplify right side
324.64x = 52,686.23 - Step 5: Solve for x
x = 52,686.23/324.64 - Step 6: Final answer
x = 162.29
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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.