Finding the Fourth Proportional to 305,809.24, 422,021.97 and 167,993.98
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Solution
The fourth proportional to 305,809.24, 422,021.97 and 167,993.98 is: 231,834.56
Step by Step Solution
- Step 1: Write the proportion equation
305,809.24 : 422,021.97 = 167,993.98 : x - Step 2: Convert to fraction form
305,809.24/422,021.97 = 167,993.98/x - Step 3: Cross multiply
305,809.24x = 422,021.97 × 167,993.98 - Step 4: Simplify right side
305,809.24x = 70,897,150,387.74 - Step 5: Solve for x
x = 70,897,150,387.74/305,809.24 - Step 6: Final answer
x = 231,834.56
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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.