Finding the Fourth Proportional to 300,882.12, 415,213.61 and 163,058.09
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Solution
The fourth proportional to 300,882.12, 415,213.61 and 163,058.09 is: 225,018.15
Step by Step Solution
- Step 1: Write the proportion equation
300,882.12 : 415,213.61 = 163,058.09 : x - Step 2: Convert to fraction form
300,882.12/415,213.61 = 163,058.09/x - Step 3: Cross multiply
300,882.12x = 415,213.61 × 163,058.09 - Step 4: Simplify right side
300,882.12x = 67,703,936,520.18 - Step 5: Solve for x
x = 67,703,936,520.18/300,882.12 - Step 6: Final answer
x = 225,018.15
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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.