Finding the Fourth Proportional to 252.09, 378.19 and 98.02
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Solution
The fourth proportional to 252.09, 378.19 and 98.02 is: 147.05
Step by Step Solution
- Step 1: Write the proportion equation
252.09 : 378.19 = 98.02 : x - Step 2: Convert to fraction form
252.09/378.19 = 98.02/x - Step 3: Cross multiply
252.09x = 378.19 × 98.02 - Step 4: Simplify right side
252.09x = 37,070.18 - Step 5: Solve for x
x = 37,070.18/252.09 - Step 6: Final answer
x = 147.05
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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.