Finding the Fourth Proportional to 395,611.21, 545,943.69 and 214,324.40
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Solution
The fourth proportional to 395,611.21, 545,943.69 and 214,324.40 is: 295,767.79
Step by Step Solution
- Step 1: Write the proportion equation
395,611.21 : 545,943.69 = 214,324.40 : x - Step 2: Convert to fraction form
395,611.21/545,943.69 = 214,324.40/x - Step 3: Cross multiply
395,611.21x = 545,943.69 × 214,324.40 - Step 4: Simplify right side
395,611.21x = 117,009,051,063.32 - Step 5: Solve for x
x = 117,009,051,063.32/395,611.21 - Step 6: Final answer
x = 295,767.79
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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.