Finding the Fourth Proportional to 394.34, 543.99 and 254.41
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Solution
The fourth proportional to 394.34, 543.99 and 254.41 is: 350.96
Step by Step Solution
- Step 1: Write the proportion equation
394.34 : 543.99 = 254.41 : x - Step 2: Convert to fraction form
394.34/543.99 = 254.41/x - Step 3: Cross multiply
394.34x = 543.99 × 254.41 - Step 4: Simplify right side
394.34x = 138,395.14 - Step 5: Solve for x
x = 138,395.14/394.34 - Step 6: Final answer
x = 350.96
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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.