Finding the Fourth Proportional to 311,899.92, 430,422.18 and 182,812.65
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Solution
The fourth proportional to 311,899.92, 430,422.18 and 182,812.65 is: 252,281.63
Step by Step Solution
- Step 1: Write the proportion equation
311,899.92 : 430,422.18 = 182,812.65 : x - Step 2: Convert to fraction form
311,899.92/430,422.18 = 182,812.65/x - Step 3: Cross multiply
311,899.92x = 430,422.18 × 182,812.65 - Step 4: Simplify right side
311,899.92x = 78,686,619,344.58 - Step 5: Solve for x
x = 78,686,619,344.58/311,899.92 - Step 6: Final answer
x = 252,281.63
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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.