Finding the Fourth Proportional to 305,550.63, 421,710.57 and 178,226.26
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Solution
The fourth proportional to 305,550.63, 421,710.57 and 178,226.26 is: 245,981.81
Step by Step Solution
- Step 1: Write the proportion equation
305,550.63 : 421,710.57 = 178,226.26 : x - Step 2: Convert to fraction form
305,550.63/421,710.57 = 178,226.26/x - Step 3: Cross multiply
305,550.63x = 421,710.57 × 178,226.26 - Step 4: Simplify right side
305,550.63x = 75,159,896,639.29 - Step 5: Solve for x
x = 75,159,896,639.29/305,550.63 - Step 6: Final answer
x = 245,981.81
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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.