Finding the Fourth Proportional to 229.24, 316.37 and 130.99
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Solution
The fourth proportional to 229.24, 316.37 and 130.99 is: 180.79
Step by Step Solution
- Step 1: Write the proportion equation
229.24 : 316.37 = 130.99 : x - Step 2: Convert to fraction form
229.24/316.37 = 130.99/x - Step 3: Cross multiply
229.24x = 316.37 × 130.99 - Step 4: Simplify right side
229.24x = 41,442.60 - Step 5: Solve for x
x = 41,442.60/229.24 - Step 6: Final answer
x = 180.79
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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.