Finding the Fourth Proportional to 392,149.80, 541,122.30 and 220,045.26
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Solution
The fourth proportional to 392,149.80, 541,122.30 and 220,045.26 is: 303,637.53
Step by Step Solution
- Step 1: Write the proportion equation
392,149.80 : 541,122.30 = 220,045.26 : x - Step 2: Convert to fraction form
392,149.80/541,122.30 = 220,045.26/x - Step 3: Cross multiply
392,149.80x = 541,122.30 × 220,045.26 - Step 4: Simplify right side
392,149.80x = 119,071,397,195.30 - Step 5: Solve for x
x = 119,071,397,195.30/392,149.80 - Step 6: Final answer
x = 303,637.53
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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.