Finding the Fourth Proportional to 369.12, 553.26 and 163.80
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Solution
The fourth proportional to 369.12, 553.26 and 163.80 is: 245.51
Step by Step Solution
- Step 1: Write the proportion equation
369.12 : 553.26 = 163.80 : x - Step 2: Convert to fraction form
369.12/553.26 = 163.80/x - Step 3: Cross multiply
369.12x = 553.26 × 163.80 - Step 4: Simplify right side
369.12x = 90,623.99 - Step 5: Solve for x
x = 90,623.99/369.12 - Step 6: Final answer
x = 245.51
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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.