Finding the Fourth Proportional to 305,532.04, 421,684.89 and 178,207.63
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Solution
The fourth proportional to 305,532.04, 421,684.89 and 178,207.63 is: 245,956.09
Step by Step Solution
- Step 1: Write the proportion equation
305,532.04 : 421,684.89 = 178,207.63 : x - Step 2: Convert to fraction form
305,532.04/421,684.89 = 178,207.63/x - Step 3: Cross multiply
305,532.04x = 421,684.89 × 178,207.63 - Step 4: Simplify right side
305,532.04x = 75,147,464,853.71 - Step 5: Solve for x
x = 75,147,464,853.71/305,532.04 - Step 6: Final answer
x = 245,956.09
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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.