Finding the Fourth Proportional to 369.10, 553.21 and 163.23
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Solution
The fourth proportional to 369.10, 553.21 and 163.23 is: 244.64
Step by Step Solution
- Step 1: Write the proportion equation
369.10 : 553.21 = 163.23 : x - Step 2: Convert to fraction form
369.10/553.21 = 163.23/x - Step 3: Cross multiply
369.10x = 553.21 × 163.23 - Step 4: Simplify right side
369.10x = 90,297.99 - Step 5: Solve for x
x = 90,297.99/369.10 - Step 6: Final answer
x = 244.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.