Finding the Fourth Proportional to 365.60, 548.19 and 121.99
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Solution
The fourth proportional to 365.60, 548.19 and 121.99 is: 182.92
Step by Step Solution
- Step 1: Write the proportion equation
365.60 : 548.19 = 121.99 : x - Step 2: Convert to fraction form
365.60/548.19 = 121.99/x - Step 3: Cross multiply
365.60x = 548.19 × 121.99 - Step 4: Simplify right side
365.60x = 66,873.70 - Step 5: Solve for x
x = 66,873.70/365.60 - Step 6: Final answer
x = 182.92
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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.