Finding the Fourth Proportional to 214,409.26, 321,568.74 and 138,279.76
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Solution
The fourth proportional to 214,409.26, 321,568.74 and 138,279.76 is: 207,390.52
Step by Step Solution
- Step 1: Write the proportion equation
214,409.26 : 321,568.74 = 138,279.76 : x - Step 2: Convert to fraction form
214,409.26/321,568.74 = 138,279.76/x - Step 3: Cross multiply
214,409.26x = 321,568.74 × 138,279.76 - Step 4: Simplify right side
214,409.26x = 44,466,448,190.70 - Step 5: Solve for x
x = 44,466,448,190.70/214,409.26 - Step 6: Final answer
x = 207,390.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.