Finding the Fourth Proportional to 395,804.64, 545,839.92 and 252,657.12
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Solution
The fourth proportional to 395,804.64, 545,839.92 and 252,657.12 is: 348,430.33
Step by Step Solution
- Step 1: Write the proportion equation
395,804.64 : 545,839.92 = 252,657.12 : x - Step 2: Convert to fraction form
395,804.64/545,839.92 = 252,657.12/x - Step 3: Cross multiply
395,804.64x = 545,839.92 × 252,657.12 - Step 4: Simplify right side
395,804.64x = 137,910,342,168.23 - Step 5: Solve for x
x = 137,910,342,168.23/395,804.64 - Step 6: Final answer
x = 348,430.33
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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.