Finding the Fourth Proportional to 638,188.56, 957,396.68 and 211,749.96
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Solution
The fourth proportional to 638,188.56, 957,396.68 and 211,749.96 is: 317,662.71
Step by Step Solution
- Step 1: Write the proportion equation
638,188.56 : 957,396.68 = 211,749.96 : x - Step 2: Convert to fraction form
638,188.56/957,396.68 = 211,749.96/x - Step 3: Cross multiply
638,188.56x = 957,396.68 × 211,749.96 - Step 4: Simplify right side
638,188.56x = 202,728,708,694.13 - Step 5: Solve for x
x = 202,728,708,694.13/638,188.56 - Step 6: Final answer
x = 317,662.71
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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.