Finding the Fourth Proportional to 252,078.84, 378,117.18 and 74,586.96
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Solution
The fourth proportional to 252,078.84, 378,117.18 and 74,586.96 is: 111,880.12
Step by Step Solution
- Step 1: Write the proportion equation
252,078.84 : 378,117.18 = 74,586.96 : x - Step 2: Convert to fraction form
252,078.84/378,117.18 = 74,586.96/x - Step 3: Cross multiply
252,078.84x = 378,117.18 × 74,586.96 - Step 4: Simplify right side
252,078.84x = 28,202,610,979.97 - Step 5: Solve for x
x = 28,202,610,979.97/252,078.84 - Step 6: Final answer
x = 111,880.12
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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.