Finding the Fourth Proportional to 252,653.44, 348,640.79 and 143,728.79
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Solution
The fourth proportional to 252,653.44, 348,640.79 and 143,728.79 is: 198,333.81
Step by Step Solution
- Step 1: Write the proportion equation
252,653.44 : 348,640.79 = 143,728.79 : x - Step 2: Convert to fraction form
252,653.44/348,640.79 = 143,728.79/x - Step 3: Cross multiply
252,653.44x = 348,640.79 × 143,728.79 - Step 4: Simplify right side
252,653.44x = 50,109,720,295.71 - Step 5: Solve for x
x = 50,109,720,295.71/252,653.44 - Step 6: Final answer
x = 198,333.81
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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.