Finding the Fourth Proportional to 248,884.74, 343,489.68 and 138,514.56
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Solution
The fourth proportional to 248,884.74, 343,489.68 and 138,514.56 is: 191,166.09
Step by Step Solution
- Step 1: Write the proportion equation
248,884.74 : 343,489.68 = 138,514.56 : x - Step 2: Convert to fraction form
248,884.74/343,489.68 = 138,514.56/x - Step 3: Cross multiply
248,884.74x = 343,489.68 × 138,514.56 - Step 4: Simplify right side
248,884.74x = 47,578,321,889.74 - Step 5: Solve for x
x = 47,578,321,889.74/248,884.74 - Step 6: Final answer
x = 191,166.09
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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.