Finding the Fourth Proportional to 214,573.97, 296,081.84 and 128,512.80
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Solution
The fourth proportional to 214,573.97, 296,081.84 and 128,512.80 is: 177,329.55
Step by Step Solution
- Step 1: Write the proportion equation
214,573.97 : 296,081.84 = 128,512.80 : x - Step 2: Convert to fraction form
214,573.97/296,081.84 = 128,512.80/x - Step 3: Cross multiply
214,573.97x = 296,081.84 × 128,512.80 - Step 4: Simplify right side
214,573.97x = 38,050,306,608.83 - Step 5: Solve for x
x = 38,050,306,608.83/214,573.97 - Step 6: Final answer
x = 177,329.55
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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.