Finding the Fourth Proportional to 218,640.09, 327,886.77 and 83,672.68
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Solution
The fourth proportional to 218,640.09, 327,886.77 and 83,672.68 is: 125,480.95
Step by Step Solution
- Step 1: Write the proportion equation
218,640.09 : 327,886.77 = 83,672.68 : x - Step 2: Convert to fraction form
218,640.09/327,886.77 = 83,672.68/x - Step 3: Cross multiply
218,640.09x = 327,886.77 × 83,672.68 - Step 4: Simplify right side
218,640.09x = 27,435,166,156.89 - Step 5: Solve for x
x = 27,435,166,156.89/218,640.09 - Step 6: Final answer
x = 125,480.95
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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.