Finding the Fourth Proportional to 311,709.56, 430,315.62 and 204,443.96
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Solution
The fourth proportional to 311,709.56, 430,315.62 and 204,443.96 is: 282,235.26
Step by Step Solution
- Step 1: Write the proportion equation
311,709.56 : 430,315.62 = 204,443.96 : x - Step 2: Convert to fraction form
311,709.56/430,315.62 = 204,443.96/x - Step 3: Cross multiply
311,709.56x = 430,315.62 × 204,443.96 - Step 4: Simplify right side
311,709.56x = 87,975,429,402.66 - Step 5: Solve for x
x = 87,975,429,402.66/311,709.56 - Step 6: Final answer
x = 282,235.26
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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.