Finding the Fourth Proportional to 252.94, 349.05 and 154.68
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Solution
The fourth proportional to 252.94, 349.05 and 154.68 is: 213.45
Step by Step Solution
- Step 1: Write the proportion equation
252.94 : 349.05 = 154.68 : x - Step 2: Convert to fraction form
252.94/349.05 = 154.68/x - Step 3: Cross multiply
252.94x = 349.05 × 154.68 - Step 4: Simplify right side
252.94x = 53,991.05 - Step 5: Solve for x
x = 53,991.05/252.94 - Step 6: Final answer
x = 213.45
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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.