Finding the Fourth Proportional to 305,261.20, 421,285.67 and 169,338.97
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Solution
The fourth proportional to 305,261.20, 421,285.67 and 169,338.97 is: 233,701.76
Step by Step Solution
- Step 1: Write the proportion equation
305,261.20 : 421,285.67 = 169,338.97 : x - Step 2: Convert to fraction form
305,261.20/421,285.67 = 169,338.97/x - Step 3: Cross multiply
305,261.20x = 421,285.67 × 169,338.97 - Step 4: Simplify right side
305,261.20x = 71,340,079,327.13 - Step 5: Solve for x
x = 71,340,079,327.13/305,261.20 - Step 6: Final answer
x = 233,701.76
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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.