Finding the Fourth Proportional to 304.13, 418.79 and 272.99
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Solution
The fourth proportional to 304.13, 418.79 and 272.99 is: 375.91
Step by Step Solution
- Step 1: Write the proportion equation
304.13 : 418.79 = 272.99 : x - Step 2: Convert to fraction form
304.13/418.79 = 272.99/x - Step 3: Cross multiply
304.13x = 418.79 × 272.99 - Step 4: Simplify right side
304.13x = 114,324.07 - Step 5: Solve for x
x = 114,324.07/304.13 - Step 6: Final answer
x = 375.91
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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.