Finding the Fourth Proportional to 221,027.13, 331,540.69 and 80,785.75
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Solution
The fourth proportional to 221,027.13, 331,540.69 and 80,785.75 is: 121,178.62
Step by Step Solution
- Step 1: Write the proportion equation
221,027.13 : 331,540.69 = 80,785.75 : x - Step 2: Convert to fraction form
221,027.13/331,540.69 = 80,785.75/x - Step 3: Cross multiply
221,027.13x = 331,540.69 × 80,785.75 - Step 4: Simplify right side
221,027.13x = 26,783,763,297.17 - Step 5: Solve for x
x = 26,783,763,297.17/221,027.13 - Step 6: Final answer
x = 121,178.62
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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.