Finding the Fourth Proportional to 199.18, 297.64 and 149.44
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Solution
The fourth proportional to 199.18, 297.64 and 149.44 is: 223.31
Step by Step Solution
- Step 1: Write the proportion equation
199.18 : 297.64 = 149.44 : x - Step 2: Convert to fraction form
199.18/297.64 = 149.44/x - Step 3: Cross multiply
199.18x = 297.64 × 149.44 - Step 4: Simplify right side
199.18x = 44,480.07 - Step 5: Solve for x
x = 44,480.07/199.18 - Step 6: Final answer
x = 223.31
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.