Finding the Fourth Proportional to 378,701.04, 522,543.21 and 225,736.49
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Solution
The fourth proportional to 378,701.04, 522,543.21 and 225,736.49 is: 311,478.07
Step by Step Solution
- Step 1: Write the proportion equation
378,701.04 : 522,543.21 = 225,736.49 : x - Step 2: Convert to fraction form
378,701.04/522,543.21 = 225,736.49/x - Step 3: Cross multiply
378,701.04x = 522,543.21 × 225,736.49 - Step 4: Simplify right side
378,701.04x = 117,957,070,098.73 - Step 5: Solve for x
x = 117,957,070,098.73/378,701.04 - Step 6: Final answer
x = 311,478.07
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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.