Finding the Fourth Proportional to 229.26, 316.33 and 130.99
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Solution
The fourth proportional to 229.26, 316.33 and 130.99 is: 180.74
Step by Step Solution
- Step 1: Write the proportion equation
229.26 : 316.33 = 130.99 : x - Step 2: Convert to fraction form
229.26/316.33 = 130.99/x - Step 3: Cross multiply
229.26x = 316.33 × 130.99 - Step 4: Simplify right side
229.26x = 41,436.07 - Step 5: Solve for x
x = 41,436.07/229.26 - Step 6: Final answer
x = 180.74
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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.