Finding the Fourth Proportional to 249.18, 343.71 and 160.63
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Solution
The fourth proportional to 249.18, 343.71 and 160.63 is: 221.57
Step by Step Solution
- Step 1: Write the proportion equation
249.18 : 343.71 = 160.63 : x - Step 2: Convert to fraction form
249.18/343.71 = 160.63/x - Step 3: Cross multiply
249.18x = 343.71 × 160.63 - Step 4: Simplify right side
249.18x = 55,209.68 - Step 5: Solve for x
x = 55,209.68/249.18 - Step 6: Final answer
x = 221.57
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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.