Finding the Fourth Proportional to 168.09, 252.17 and 99.53
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Solution
The fourth proportional to 168.09, 252.17 and 99.53 is: 149.32
Step by Step Solution
- Step 1: Write the proportion equation
168.09 : 252.17 = 99.53 : x - Step 2: Convert to fraction form
168.09/252.17 = 99.53/x - Step 3: Cross multiply
168.09x = 252.17 × 99.53 - Step 4: Simplify right side
168.09x = 25,100.02 - Step 5: Solve for x
x = 25,100.02/168.09 - Step 6: Final answer
x = 149.32
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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.