Finding the Fourth Proportional to 234.99, 324.18 and 136.69
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Solution
The fourth proportional to 234.99, 324.18 and 136.69 is: 188.57
Step by Step Solution
- Step 1: Write the proportion equation
234.99 : 324.18 = 136.69 : x - Step 2: Convert to fraction form
234.99/324.18 = 136.69/x - Step 3: Cross multiply
234.99x = 324.18 × 136.69 - Step 4: Simplify right side
234.99x = 44,310.97 - Step 5: Solve for x
x = 44,310.97/234.99 - Step 6: Final answer
x = 188.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.