Finding the Fourth Proportional to 261,672.80, 391,472.40 and 226,997.60
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Solution
The fourth proportional to 261,672.80, 391,472.40 and 226,997.60 is: 339,596.99
Step by Step Solution
- Step 1: Write the proportion equation
261,672.80 : 391,472.40 = 226,997.60 : x - Step 2: Convert to fraction form
261,672.80/391,472.40 = 226,997.60/x - Step 3: Cross multiply
261,672.80x = 391,472.40 × 226,997.60 - Step 4: Simplify right side
261,672.80x = 88,863,295,266.24 - Step 5: Solve for x
x = 88,863,295,266.24/261,672.80 - Step 6: Final answer
x = 339,596.99
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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.