Finding the Fourth Proportional to 311,758.24, 430,254.48 and 177,665.44
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Solution
The fourth proportional to 311,758.24, 430,254.48 and 177,665.44 is: 245,194.33
Step by Step Solution
- Step 1: Write the proportion equation
311,758.24 : 430,254.48 = 177,665.44 : x - Step 2: Convert to fraction form
311,758.24/430,254.48 = 177,665.44/x - Step 3: Cross multiply
311,758.24x = 430,254.48 × 177,665.44 - Step 4: Simplify right side
311,758.24x = 76,441,351,501.17 - Step 5: Solve for x
x = 76,441,351,501.17/311,758.24 - Step 6: Final answer
x = 245,194.33
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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.