Finding the Fourth Proportional to 245.91, 369.09 and 115.99
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Solution
The fourth proportional to 245.91, 369.09 and 115.99 is: 174.09
Step by Step Solution
- Step 1: Write the proportion equation
245.91 : 369.09 = 115.99 : x - Step 2: Convert to fraction form
245.91/369.09 = 115.99/x - Step 3: Cross multiply
245.91x = 369.09 × 115.99 - Step 4: Simplify right side
245.91x = 42,810.75 - Step 5: Solve for x
x = 42,810.75/245.91 - Step 6: Final answer
x = 174.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.