Finding the Fourth Proportional to 210.44, 315.58 and 161.99
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Solution
The fourth proportional to 210.44, 315.58 and 161.99 is: 242.93
Step by Step Solution
- Step 1: Write the proportion equation
210.44 : 315.58 = 161.99 : x - Step 2: Convert to fraction form
210.44/315.58 = 161.99/x - Step 3: Cross multiply
210.44x = 315.58 × 161.99 - Step 4: Simplify right side
210.44x = 51,121.20 - Step 5: Solve for x
x = 51,121.20/210.44 - Step 6: Final answer
x = 242.93
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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.