Finding the Fourth Proportional to 211,197.22, 291,408.49 and 120,582.68
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Solution
The fourth proportional to 211,197.22, 291,408.49 and 120,582.68 is: 166,379.15
Step by Step Solution
- Step 1: Write the proportion equation
211,197.22 : 291,408.49 = 120,582.68 : x - Step 2: Convert to fraction form
211,197.22/291,408.49 = 120,582.68/x - Step 3: Cross multiply
211,197.22x = 291,408.49 × 120,582.68 - Step 4: Simplify right side
211,197.22x = 35,138,814,714.36 - Step 5: Solve for x
x = 35,138,814,714.36/211,197.22 - Step 6: Final answer
x = 166,379.15
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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.