Finding the Fourth Proportional to 199.52, 299.26 and 122.44
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Solution
The fourth proportional to 199.52, 299.26 and 122.44 is: 183.65
Step by Step Solution
- Step 1: Write the proportion equation
199.52 : 299.26 = 122.44 : x - Step 2: Convert to fraction form
199.52/299.26 = 122.44/x - Step 3: Cross multiply
199.52x = 299.26 × 122.44 - Step 4: Simplify right side
199.52x = 36,641.26 - Step 5: Solve for x
x = 36,641.26/199.52 - Step 6: Final answer
x = 183.65
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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.