Finding the Fourth Proportional to 248,995.20, 343,613.70 and 135,819.84
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Solution
The fourth proportional to 248,995.20, 343,613.70 and 135,819.84 is: 187,431.56
Step by Step Solution
- Step 1: Write the proportion equation
248,995.20 : 343,613.70 = 135,819.84 : x - Step 2: Convert to fraction form
248,995.20/343,613.70 = 135,819.84/x - Step 3: Cross multiply
248,995.20x = 343,613.70 × 135,819.84 - Step 4: Simplify right side
248,995.20x = 46,669,557,755.81 - Step 5: Solve for x
x = 46,669,557,755.81/248,995.20 - Step 6: Final answer
x = 187,431.56
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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.