Finding the Fourth Proportional to 397,711.75, 548,842.31 and 218,863.75
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Solution
The fourth proportional to 397,711.75, 548,842.31 and 218,863.75 is: 302,032.02
Step by Step Solution
- Step 1: Write the proportion equation
397,711.75 : 548,842.31 = 218,863.75 : x - Step 2: Convert to fraction form
397,711.75/548,842.31 = 218,863.75/x - Step 3: Cross multiply
397,711.75x = 548,842.31 × 218,863.75 - Step 4: Simplify right side
397,711.75x = 120,121,685,030.94 - Step 5: Solve for x
x = 120,121,685,030.94/397,711.75 - Step 6: Final answer
x = 302,032.02
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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.