Finding the Fourth Proportional to 249.01, 343.63 and 155.70
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Solution
The fourth proportional to 249.01, 343.63 and 155.70 is: 214.86
Step by Step Solution
- Step 1: Write the proportion equation
249.01 : 343.63 = 155.70 : x - Step 2: Convert to fraction form
249.01/343.63 = 155.70/x - Step 3: Cross multiply
249.01x = 343.63 × 155.70 - Step 4: Simplify right side
249.01x = 53,503.19 - Step 5: Solve for x
x = 53,503.19/249.01 - Step 6: Final answer
x = 214.86
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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.