Finding the Fourth Proportional to 277,221.12, 415,882.92 and 87,729.18
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Solution
The fourth proportional to 277,221.12, 415,882.92 and 87,729.18 is: 131,609.98
Step by Step Solution
- Step 1: Write the proportion equation
277,221.12 : 415,882.92 = 87,729.18 : x - Step 2: Convert to fraction form
277,221.12/415,882.92 = 87,729.18/x - Step 3: Cross multiply
277,221.12x = 415,882.92 × 87,729.18 - Step 4: Simplify right side
277,221.12x = 36,485,066,317.03 - Step 5: Solve for x
x = 36,485,066,317.03/277,221.12 - Step 6: Final answer
x = 131,609.98
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1.5x scale
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.