Finding the Fourth Proportional to 202.42, 281.23 and 199.99
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Solution
The fourth proportional to 202.42, 281.23 and 199.99 is: 277.85
Step by Step Solution
- Step 1: Write the proportion equation
202.42 : 281.23 = 199.99 : x - Step 2: Convert to fraction form
202.42/281.23 = 199.99/x - Step 3: Cross multiply
202.42x = 281.23 × 199.99 - Step 4: Simplify right side
202.42x = 56,243.64 - Step 5: Solve for x
x = 56,243.64/202.42 - Step 6: Final answer
x = 277.85
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.