Finding the Fourth Proportional to 388,703.09, 536,428.52 and 227,610.03
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Solution
The fourth proportional to 388,703.09, 536,428.52 and 227,610.03 is: 314,112.53
Step by Step Solution
- Step 1: Write the proportion equation
388,703.09 : 536,428.52 = 227,610.03 : x - Step 2: Convert to fraction form
388,703.09/536,428.52 = 227,610.03/x - Step 3: Cross multiply
388,703.09x = 536,428.52 × 227,610.03 - Step 4: Simplify right side
388,703.09x = 122,096,511,530.06 - Step 5: Solve for x
x = 122,096,511,530.06/388,703.09 - Step 6: Final answer
x = 314,112.53
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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.