Finding the Fourth Proportional to 305,456.42, 420,035.10 and 265,100.09
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Solution
The fourth proportional to 305,456.42, 420,035.10 and 265,100.09 is: 364,540.85
Step by Step Solution
- Step 1: Write the proportion equation
305,456.42 : 420,035.10 = 265,100.09 : x - Step 2: Convert to fraction form
305,456.42/420,035.10 = 265,100.09/x - Step 3: Cross multiply
305,456.42x = 420,035.10 × 265,100.09 - Step 4: Simplify right side
305,456.42x = 111,351,342,813.16 - Step 5: Solve for x
x = 111,351,342,813.16/305,456.42 - Step 6: Final answer
x = 364,540.85
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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.