Finding the Fourth Proportional to 243.84, 365.53 and 121.99
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Solution
The fourth proportional to 243.84, 365.53 and 121.99 is: 182.86
Step by Step Solution
- Step 1: Write the proportion equation
243.84 : 365.53 = 121.99 : x - Step 2: Convert to fraction form
243.84/365.53 = 121.99/x - Step 3: Cross multiply
243.84x = 365.53 × 121.99 - Step 4: Simplify right side
243.84x = 44,588.57 - Step 5: Solve for x
x = 44,588.57/243.84 - Step 6: Final answer
x = 182.86
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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.