Finding the Fourth Proportional to 217,938.67, 300,754.21 and 122,444.53
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Solution
The fourth proportional to 217,938.67, 300,754.21 and 122,444.53 is: 168,972.80
Step by Step Solution
- Step 1: Write the proportion equation
217,938.67 : 300,754.21 = 122,444.53 : x - Step 2: Convert to fraction form
217,938.67/300,754.21 = 122,444.53/x - Step 3: Cross multiply
217,938.67x = 300,754.21 × 122,444.53 - Step 4: Simplify right side
217,938.67x = 36,825,707,888.97 - Step 5: Solve for x
x = 36,825,707,888.97/217,938.67 - Step 6: Final answer
x = 168,972.80
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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.