Finding the Fourth Proportional to 374.09, 515.99 and 343.11
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Solution
The fourth proportional to 374.09, 515.99 and 343.11 is: 473.26
Step by Step Solution
- Step 1: Write the proportion equation
374.09 : 515.99 = 343.11 : x - Step 2: Convert to fraction form
374.09/515.99 = 343.11/x - Step 3: Cross multiply
374.09x = 515.99 × 343.11 - Step 4: Simplify right side
374.09x = 177,042.19 - Step 5: Solve for x
x = 177,042.19/374.09 - Step 6: Final answer
x = 473.26
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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.