Finding the Fourth Proportional to 242.22, 334.26 and 143.99
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Solution
The fourth proportional to 242.22, 334.26 and 143.99 is: 198.70
Step by Step Solution
- Step 1: Write the proportion equation
242.22 : 334.26 = 143.99 : x - Step 2: Convert to fraction form
242.22/334.26 = 143.99/x - Step 3: Cross multiply
242.22x = 334.26 × 143.99 - Step 4: Simplify right side
242.22x = 48,128.97 - Step 5: Solve for x
x = 48,128.97/242.22 - Step 6: Final answer
x = 198.70
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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.