Finding the Fourth Proportional to 388,677.25, 536,508.84 and 227,584.09
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Solution
The fourth proportional to 388,677.25, 536,508.84 and 227,584.09 is: 314,144.64
Step by Step Solution
- Step 1: Write the proportion equation
388,677.25 : 536,508.84 = 227,584.09 : x - Step 2: Convert to fraction form
388,677.25/536,508.84 = 227,584.09/x - Step 3: Cross multiply
388,677.25x = 536,508.84 × 227,584.09 - Step 4: Simplify right side
388,677.25x = 122,100,876,128.36 - Step 5: Solve for x
x = 122,100,876,128.36/388,677.25 - Step 6: Final answer
x = 314,144.64
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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.