Finding the Fourth Proportional to 369.70, 553.79 and 222.99
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Solution
The fourth proportional to 369.70, 553.79 and 222.99 is: 334.03
Step by Step Solution
- Step 1: Write the proportion equation
369.70 : 553.79 = 222.99 : x - Step 2: Convert to fraction form
369.70/553.79 = 222.99/x - Step 3: Cross multiply
369.70x = 553.79 × 222.99 - Step 4: Simplify right side
369.70x = 123,489.63 - Step 5: Solve for x
x = 123,489.63/369.70 - Step 6: Final answer
x = 334.03
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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.