Finding the Fourth Proportional to 199.67, 299.50 and 83.99
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Solution
The fourth proportional to 199.67, 299.50 and 83.99 is: 125.99
Step by Step Solution
- Step 1: Write the proportion equation
199.67 : 299.50 = 83.99 : x - Step 2: Convert to fraction form
199.67/299.50 = 83.99/x - Step 3: Cross multiply
199.67x = 299.50 × 83.99 - Step 4: Simplify right side
199.67x = 25,155.54 - Step 5: Solve for x
x = 25,155.54/199.67 - Step 6: Final answer
x = 125.99
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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.