Finding the Fourth Proportional to 229.05, 343.62 and 74.99
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Solution
The fourth proportional to 229.05, 343.62 and 74.99 is: 112.49
Step by Step Solution
- Step 1: Write the proportion equation
229.05 : 343.62 = 74.99 : x - Step 2: Convert to fraction form
229.05/343.62 = 74.99/x - Step 3: Cross multiply
229.05x = 343.62 × 74.99 - Step 4: Simplify right side
229.05x = 25,766.35 - Step 5: Solve for x
x = 25,766.35/229.05 - Step 6: Final answer
x = 112.49
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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.