Finding the Fourth Proportional to 243.99, 365.99 and 135.99
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Solution
The fourth proportional to 243.99, 365.99 and 135.99 is: 203.99
Step by Step Solution
- Step 1: Write the proportion equation
243.99 : 365.99 = 135.99 : x - Step 2: Convert to fraction form
243.99/365.99 = 135.99/x - Step 3: Cross multiply
243.99x = 365.99 × 135.99 - Step 4: Simplify right side
243.99x = 49,770.30 - Step 5: Solve for x
x = 49,770.30/243.99 - Step 6: Final answer
x = 203.99
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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.