Finding the Fourth Proportional to 190,888.65, 263,305.26 and 117,268.88
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Solution
The fourth proportional to 190,888.65, 263,305.26 and 117,268.88 is: 161,756.67
Step by Step Solution
- Step 1: Write the proportion equation
190,888.65 : 263,305.26 = 117,268.88 : x - Step 2: Convert to fraction form
190,888.65/263,305.26 = 117,268.88/x - Step 3: Cross multiply
190,888.65x = 263,305.26 × 117,268.88 - Step 4: Simplify right side
190,888.65x = 30,877,511,621.78 - Step 5: Solve for x
x = 30,877,511,621.78/190,888.65 - Step 6: Final answer
x = 161,756.67
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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.