Finding the Fourth Proportional to 396,309.70, 593,449.62 and 218,619.19
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Solution
The fourth proportional to 396,309.70, 593,449.62 and 218,619.19 is: 327,368.91
Step by Step Solution
- Step 1: Write the proportion equation
396,309.70 : 593,449.62 = 218,619.19 : x - Step 2: Convert to fraction form
396,309.70/593,449.62 = 218,619.19/x - Step 3: Cross multiply
396,309.70x = 593,449.62 × 218,619.19 - Step 4: Simplify right side
396,309.70x = 129,739,475,230.21 - Step 5: Solve for x
x = 129,739,475,230.21/396,309.70 - Step 6: Final answer
x = 327,368.91
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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.