Finding the Fourth Proportional to 274.23, 378.36 and 180.99
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Solution
The fourth proportional to 274.23, 378.36 and 180.99 is: 249.72
Step by Step Solution
- Step 1: Write the proportion equation
274.23 : 378.36 = 180.99 : x - Step 2: Convert to fraction form
274.23/378.36 = 180.99/x - Step 3: Cross multiply
274.23x = 378.36 × 180.99 - Step 4: Simplify right side
274.23x = 68,479.38 - Step 5: Solve for x
x = 68,479.38/274.23 - Step 6: Final answer
x = 249.72
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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.