Finding the Fourth Proportional to 199.68, 299.68 and 108.44
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Solution
The fourth proportional to 199.68, 299.68 and 108.44 is: 162.75
Step by Step Solution
- Step 1: Write the proportion equation
199.68 : 299.68 = 108.44 : x - Step 2: Convert to fraction form
199.68/299.68 = 108.44/x - Step 3: Cross multiply
199.68x = 299.68 × 108.44 - Step 4: Simplify right side
199.68x = 32,497.30 - Step 5: Solve for x
x = 32,497.30/199.68 - Step 6: Final answer
x = 162.75
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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.