Finding the Fourth Proportional to 248,639.09, 343,121.97 and 135,461.84
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Solution
The fourth proportional to 248,639.09, 343,121.97 and 135,461.84 is: 186,937.35
Step by Step Solution
- Step 1: Write the proportion equation
248,639.09 : 343,121.97 = 135,461.84 : x - Step 2: Convert to fraction form
248,639.09/343,121.97 = 135,461.84/x - Step 3: Cross multiply
248,639.09x = 343,121.97 × 135,461.84 - Step 4: Simplify right side
248,639.09x = 46,479,932,193.00 - Step 5: Solve for x
x = 46,479,932,193.00/248,639.09 - Step 6: Final answer
x = 186,937.35
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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.