Finding the Fourth Proportional to 252.99, 349.23 and 154.75
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Solution
The fourth proportional to 252.99, 349.23 and 154.75 is: 213.62
Step by Step Solution
- Step 1: Write the proportion equation
252.99 : 349.23 = 154.75 : x - Step 2: Convert to fraction form
252.99/349.23 = 154.75/x - Step 3: Cross multiply
252.99x = 349.23 × 154.75 - Step 4: Simplify right side
252.99x = 54,042.57 - Step 5: Solve for x
x = 54,042.57/252.99 - Step 6: Final answer
x = 213.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.