Finding the Fourth Proportional to 305,313.24, 421,382.72 and 169,390.95
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Solution
The fourth proportional to 305,313.24, 421,382.72 and 169,390.95 is: 233,787.50
Step by Step Solution
- Step 1: Write the proportion equation
305,313.24 : 421,382.72 = 169,390.95 : x - Step 2: Convert to fraction form
305,313.24/421,382.72 = 169,390.95/x - Step 3: Cross multiply
305,313.24x = 421,382.72 × 169,390.95 - Step 4: Simplify right side
305,313.24x = 71,378,419,254.38 - Step 5: Solve for x
x = 71,378,419,254.38/305,313.24 - Step 6: Final answer
x = 233,787.50
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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.