Finding the Fourth Proportional to 395,879.45, 545,580.99 and 281,163.11
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Solution
The fourth proportional to 395,879.45, 545,580.99 and 281,163.11 is: 387,484.74
Step by Step Solution
- Step 1: Write the proportion equation
395,879.45 : 545,580.99 = 281,163.11 : x - Step 2: Convert to fraction form
395,879.45/545,580.99 = 281,163.11/x - Step 3: Cross multiply
395,879.45x = 545,580.99 × 281,163.11 - Step 4: Simplify right side
395,879.45x = 153,397,245,177.37 - Step 5: Solve for x
x = 153,397,245,177.37/395,879.45 - Step 6: Final answer
x = 387,484.74
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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.