Finding the Fourth Proportional to 252.68, 378.73 and 122.81
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Solution
The fourth proportional to 252.68, 378.73 and 122.81 is: 184.07
Step by Step Solution
- Step 1: Write the proportion equation
252.68 : 378.73 = 122.81 : x - Step 2: Convert to fraction form
252.68/378.73 = 122.81/x - Step 3: Cross multiply
252.68x = 378.73 × 122.81 - Step 4: Simplify right side
252.68x = 46,510.15 - Step 5: Solve for x
x = 46,510.15/252.68 - Step 6: Final answer
x = 184.07
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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.