Finding the Fourth Proportional to 313,042.70, 431,998.97 and 177,073.74
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Solution
The fourth proportional to 313,042.70, 431,998.97 and 177,073.74 is: 244,361.78
Step by Step Solution
- Step 1: Write the proportion equation
313,042.70 : 431,998.97 = 177,073.74 : x - Step 2: Convert to fraction form
313,042.70/431,998.97 = 177,073.74/x - Step 3: Cross multiply
313,042.70x = 431,998.97 × 177,073.74 - Step 4: Simplify right side
313,042.70x = 76,495,672,408.68 - Step 5: Solve for x
x = 76,495,672,408.68/313,042.70 - Step 6: Final answer
x = 244,361.78
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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.