Finding the Fourth Proportional to 221,583.63, 305,678.57 and 145,068.87
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Solution
The fourth proportional to 221,583.63, 305,678.57 and 145,068.87 is: 200,125.09
Step by Step Solution
- Step 1: Write the proportion equation
221,583.63 : 305,678.57 = 145,068.87 : x - Step 2: Convert to fraction form
221,583.63/305,678.57 = 145,068.87/x - Step 3: Cross multiply
221,583.63x = 305,678.57 × 145,068.87 - Step 4: Simplify right side
221,583.63x = 44,344,444,007.77 - Step 5: Solve for x
x = 44,344,444,007.77/221,583.63 - Step 6: Final answer
x = 200,125.09
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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.