Finding the Fourth Proportional to 394.09, 542.99 and 300.67
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Solution
The fourth proportional to 394.09, 542.99 and 300.67 is: 414.27
Step by Step Solution
- Step 1: Write the proportion equation
394.09 : 542.99 = 300.67 : x - Step 2: Convert to fraction form
394.09/542.99 = 300.67/x - Step 3: Cross multiply
394.09x = 542.99 × 300.67 - Step 4: Simplify right side
394.09x = 163,260.20 - Step 5: Solve for x
x = 163,260.20/394.09 - Step 6: Final answer
x = 414.27
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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.