Finding the Fourth Proportional to 306.26, 422.68 and 296.13
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Solution
The fourth proportional to 306.26, 422.68 and 296.13 is: 408.71
Step by Step Solution
- Step 1: Write the proportion equation
306.26 : 422.68 = 296.13 : x - Step 2: Convert to fraction form
306.26/422.68 = 296.13/x - Step 3: Cross multiply
306.26x = 422.68 × 296.13 - Step 4: Simplify right side
306.26x = 125,168.23 - Step 5: Solve for x
x = 125,168.23/306.26 - Step 6: Final answer
x = 408.71
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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.