Finding the Fourth Proportional to 392,521.09, 541,677.57 and 220,415.11
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Solution
The fourth proportional to 392,521.09, 541,677.57 and 220,415.11 is: 304,171.99
Step by Step Solution
- Step 1: Write the proportion equation
392,521.09 : 541,677.57 = 220,415.11 : x - Step 2: Convert to fraction form
392,521.09/541,677.57 = 220,415.11/x - Step 3: Cross multiply
392,521.09x = 541,677.57 × 220,415.11 - Step 4: Simplify right side
392,521.09x = 119,393,921,176.08 - Step 5: Solve for x
x = 119,393,921,176.08/392,521.09 - Step 6: Final answer
x = 304,171.99
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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.