Finding the Fourth Proportional to 305,381.53, 421,427.01 and 169,415.49
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Solution
The fourth proportional to 305,381.53, 421,427.01 and 169,415.49 is: 233,793.65
Step by Step Solution
- Step 1: Write the proportion equation
305,381.53 : 421,427.01 = 169,415.49 : x - Step 2: Convert to fraction form
305,381.53/421,427.01 = 169,415.49/x - Step 3: Cross multiply
305,381.53x = 421,427.01 × 169,415.49 - Step 4: Simplify right side
305,381.53x = 71,396,263,398.38 - Step 5: Solve for x
x = 71,396,263,398.38/305,381.53 - Step 6: Final answer
x = 233,793.65
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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.