Finding the Fourth Proportional to 395,554.04, 545,837.37 and 221,112.98
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Solution
The fourth proportional to 395,554.04, 545,837.37 and 221,112.98 is: 305,120.70
Step by Step Solution
- Step 1: Write the proportion equation
395,554.04 : 545,837.37 = 221,112.98 : x - Step 2: Convert to fraction form
395,554.04/545,837.37 = 221,112.98/x - Step 3: Cross multiply
395,554.04x = 545,837.37 × 221,112.98 - Step 4: Simplify right side
395,554.04x = 120,691,727,476.06 - Step 5: Solve for x
x = 120,691,727,476.06/395,554.04 - Step 6: Final answer
x = 305,120.70
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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.