Finding the Fourth Proportional to 388.92, 536.48 and 248.99
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Solution
The fourth proportional to 388.92, 536.48 and 248.99 is: 343.46
Step by Step Solution
- Step 1: Write the proportion equation
388.92 : 536.48 = 248.99 : x - Step 2: Convert to fraction form
388.92/536.48 = 248.99/x - Step 3: Cross multiply
388.92x = 536.48 × 248.99 - Step 4: Simplify right side
388.92x = 133,578.97 - Step 5: Solve for x
x = 133,578.97/388.92 - Step 6: Final answer
x = 343.46
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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.