Finding the Fourth Proportional to 249.40, 344.10 and 151.08
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Solution
The fourth proportional to 249.40, 344.10 and 151.08 is: 208.45
Step by Step Solution
- Step 1: Write the proportion equation
249.40 : 344.10 = 151.08 : x - Step 2: Convert to fraction form
249.40/344.10 = 151.08/x - Step 3: Cross multiply
249.40x = 344.10 × 151.08 - Step 4: Simplify right side
249.40x = 51,986.99 - Step 5: Solve for x
x = 51,986.99/249.40 - Step 6: Final answer
x = 208.45
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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.