Finding the Fourth Proportional to 305,910.62, 458,394.34 and 163,774.75
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Solution
The fourth proportional to 305,910.62, 458,394.34 and 163,774.75 is: 245,409.64
Step by Step Solution
- Step 1: Write the proportion equation
305,910.62 : 458,394.34 = 163,774.75 : x - Step 2: Convert to fraction form
305,910.62/458,394.34 = 163,774.75/x - Step 3: Cross multiply
305,910.62x = 458,394.34 × 163,774.75 - Step 4: Simplify right side
305,910.62x = 75,073,415,324.07 - Step 5: Solve for x
x = 75,073,415,324.07/305,910.62 - Step 6: Final answer
x = 245,409.64
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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.