Finding the Fourth Proportional to 306.11, 422.24 and 181.68
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Solution
The fourth proportional to 306.11, 422.24 and 181.68 is: 250.60
Step by Step Solution
- Step 1: Write the proportion equation
306.11 : 422.24 = 181.68 : x - Step 2: Convert to fraction form
306.11/422.24 = 181.68/x - Step 3: Cross multiply
306.11x = 422.24 × 181.68 - Step 4: Simplify right side
306.11x = 76,711.26 - Step 5: Solve for x
x = 76,711.26/306.11 - Step 6: Final answer
x = 250.60
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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.