Finding the Fourth Proportional to 361,123.21, 498,343.84 and 199,974.79
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Solution
The fourth proportional to 361,123.21, 498,343.84 and 199,974.79 is: 275,961.78
Step by Step Solution
- Step 1: Write the proportion equation
361,123.21 : 498,343.84 = 199,974.79 : x - Step 2: Convert to fraction form
361,123.21/498,343.84 = 199,974.79/x - Step 3: Cross multiply
361,123.21x = 498,343.84 × 199,974.79 - Step 4: Simplify right side
361,123.21x = 99,656,204,751.79 - Step 5: Solve for x
x = 99,656,204,751.79/361,123.21 - Step 6: Final answer
x = 275,961.78
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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.