Finding the Fourth Proportional to 218,175.21, 301,070.79 and 122,676.21
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Solution
The fourth proportional to 218,175.21, 301,070.79 and 122,676.21 is: 169,286.98
Step by Step Solution
- Step 1: Write the proportion equation
218,175.21 : 301,070.79 = 122,676.21 : x - Step 2: Convert to fraction form
218,175.21/301,070.79 = 122,676.21/x - Step 3: Cross multiply
218,175.21x = 301,070.79 × 122,676.21 - Step 4: Simplify right side
218,175.21x = 36,934,223,458.91 - Step 5: Solve for x
x = 36,934,223,458.91/218,175.21 - Step 6: Final answer
x = 169,286.98
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1.5x scale
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.