Finding the Fourth Proportional to 199,386.70, 275,245.79 and 122,919.46
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Solution
The fourth proportional to 199,386.70, 275,245.79 and 122,919.46 is: 169,685.66
Step by Step Solution
- Step 1: Write the proportion equation
199,386.70 : 275,245.79 = 122,919.46 : x - Step 2: Convert to fraction form
199,386.70/275,245.79 = 122,919.46/x - Step 3: Cross multiply
199,386.70x = 275,245.79 × 122,919.46 - Step 4: Simplify right side
199,386.70x = 33,833,063,874.07 - Step 5: Solve for x
x = 33,833,063,874.07/199,386.70 - Step 6: Final answer
x = 169,685.66
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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.