Finding the Fourth Proportional to 305,863.63, 421,996.57 and 176,755.06
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Solution
The fourth proportional to 305,863.63, 421,996.57 and 176,755.06 is: 243,866.95
Step by Step Solution
- Step 1: Write the proportion equation
305,863.63 : 421,996.57 = 176,755.06 : x - Step 2: Convert to fraction form
305,863.63/421,996.57 = 176,755.06/x - Step 3: Cross multiply
305,863.63x = 421,996.57 × 176,755.06 - Step 4: Simplify right side
305,863.63x = 74,590,029,135.75 - Step 5: Solve for x
x = 74,590,029,135.75/305,863.63 - Step 6: Final answer
x = 243,866.95
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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.