Finding the Fourth Proportional to 380,958.96, 525,724.11 and 211,193.09
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Solution
The fourth proportional to 380,958.96, 525,724.11 and 211,193.09 is: 291,446.87
Step by Step Solution
- Step 1: Write the proportion equation
380,958.96 : 525,724.11 = 211,193.09 : x - Step 2: Convert to fraction form
380,958.96/525,724.11 = 211,193.09/x - Step 3: Cross multiply
380,958.96x = 525,724.11 × 211,193.09 - Step 4: Simplify right side
380,958.96x = 111,029,295,593.81 - Step 5: Solve for x
x = 111,029,295,593.81/380,958.96 - Step 6: Final answer
x = 291,446.87
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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.