Finding the Fourth Proportional to 261,236.09, 391,858.97 and 74,252.45
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Solution
The fourth proportional to 261,236.09, 391,858.97 and 74,252.45 is: 111,380.04
Step by Step Solution
- Step 1: Write the proportion equation
261,236.09 : 391,858.97 = 74,252.45 : x - Step 2: Convert to fraction form
261,236.09/391,858.97 = 74,252.45/x - Step 3: Cross multiply
261,236.09x = 391,858.97 × 74,252.45 - Step 4: Simplify right side
261,236.09x = 29,096,486,246.42 - Step 5: Solve for x
x = 29,096,486,246.42/261,236.09 - Step 6: Final answer
x = 111,380.04
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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.