Finding the Fourth Proportional to 218,243.98, 327,445.92 and 91,916.02
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Solution
The fourth proportional to 218,243.98, 327,445.92 and 91,916.02 is: 137,907.70
Step by Step Solution
- Step 1: Write the proportion equation
218,243.98 : 327,445.92 = 91,916.02 : x - Step 2: Convert to fraction form
218,243.98/327,445.92 = 91,916.02/x - Step 3: Cross multiply
218,243.98x = 327,445.92 × 91,916.02 - Step 4: Simplify right side
218,243.98x = 30,097,525,731.64 - Step 5: Solve for x
x = 30,097,525,731.64/218,243.98 - Step 6: Final answer
x = 137,907.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.