Finding the Fourth Proportional to 457,379.97, 686,161.97 and 157,872.15
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Solution
The fourth proportional to 457,379.97, 686,161.97 and 157,872.15 is: 236,839.98
Step by Step Solution
- Step 1: Write the proportion equation
457,379.97 : 686,161.97 = 157,872.15 : x - Step 2: Convert to fraction form
457,379.97/686,161.97 = 157,872.15/x - Step 3: Cross multiply
457,379.97x = 686,161.97 × 157,872.15 - Step 4: Simplify right side
457,379.97x = 108,325,864,662.78 - Step 5: Solve for x
x = 108,325,864,662.78/457,379.97 - Step 6: Final answer
x = 236,839.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.