Finding the Fourth Proportional to 321.26, 482.26 and 193.28
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Solution
The fourth proportional to 321.26, 482.26 and 193.28 is: 290.14
Step by Step Solution
- Step 1: Write the proportion equation
321.26 : 482.26 = 193.28 : x - Step 2: Convert to fraction form
321.26/482.26 = 193.28/x - Step 3: Cross multiply
321.26x = 482.26 × 193.28 - Step 4: Simplify right side
321.26x = 93,211.21 - Step 5: Solve for x
x = 93,211.21/321.26 - Step 6: Final answer
x = 290.14
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.