Finding the Fourth Proportional to 217.80, 324.99 and 181.80
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Solution
The fourth proportional to 217.80, 324.99 and 181.80 is: 271.27
Step by Step Solution
- Step 1: Write the proportion equation
217.80 : 324.99 = 181.80 : x - Step 2: Convert to fraction form
217.80/324.99 = 181.80/x - Step 3: Cross multiply
217.80x = 324.99 × 181.80 - Step 4: Simplify right side
217.80x = 59,083.18 - Step 5: Solve for x
x = 59,083.18/217.80 - Step 6: Final answer
x = 271.27
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.