Finding the Fourth Proportional to 248,517.68, 342,951.84 and 135,340.43
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Solution
The fourth proportional to 248,517.68, 342,951.84 and 135,340.43 is: 186,768.40
Step by Step Solution
- Step 1: Write the proportion equation
248,517.68 : 342,951.84 = 135,340.43 : x - Step 2: Convert to fraction form
248,517.68/342,951.84 = 135,340.43/x - Step 3: Cross multiply
248,517.68x = 342,951.84 × 135,340.43 - Step 4: Simplify right side
248,517.68x = 46,415,247,780.13 - Step 5: Solve for x
x = 46,415,247,780.13/248,517.68 - Step 6: Final answer
x = 186,768.40
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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.