Finding the Fourth Proportional to 418,198.26, 576,986.49 and 236,881.38
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Solution
The fourth proportional to 418,198.26, 576,986.49 and 236,881.38 is: 326,824.31
Step by Step Solution
- Step 1: Write the proportion equation
418,198.26 : 576,986.49 = 236,881.38 : x - Step 2: Convert to fraction form
418,198.26/576,986.49 = 236,881.38/x - Step 3: Cross multiply
418,198.26x = 576,986.49 × 236,881.38 - Step 4: Simplify right side
418,198.26x = 136,677,355,992.56 - Step 5: Solve for x
x = 136,677,355,992.56/418,198.26 - Step 6: Final answer
x = 326,824.31
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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.