Finding the Fourth Proportional to 394.02, 543.73 and 216.99
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Solution
The fourth proportional to 394.02, 543.73 and 216.99 is: 299.44
Step by Step Solution
- Step 1: Write the proportion equation
394.02 : 543.73 = 216.99 : x - Step 2: Convert to fraction form
394.02/543.73 = 216.99/x - Step 3: Cross multiply
394.02x = 543.73 × 216.99 - Step 4: Simplify right side
394.02x = 117,983.97 - Step 5: Solve for x
x = 117,983.97/394.02 - Step 6: Final answer
x = 299.44
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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.