Finding the Fourth Proportional to 305,131.68, 420,932.08 and 264,788.80
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Solution
The fourth proportional to 305,131.68, 420,932.08 and 264,788.80 is: 365,278.69
Step by Step Solution
- Step 1: Write the proportion equation
305,131.68 : 420,932.08 = 264,788.80 : x - Step 2: Convert to fraction form
305,131.68/420,932.08 = 264,788.80/x - Step 3: Cross multiply
305,131.68x = 420,932.08 × 264,788.80 - Step 4: Simplify right side
305,131.68x = 111,458,100,344.70 - Step 5: Solve for x
x = 111,458,100,344.70/305,131.68 - Step 6: Final answer
x = 365,278.69
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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.