Finding the Fourth Proportional to 211,214.22, 316,912.05 and 140,161.70
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Solution
The fourth proportional to 211,214.22, 316,912.05 and 140,161.70 is: 210,302.74
Step by Step Solution
- Step 1: Write the proportion equation
211,214.22 : 316,912.05 = 140,161.70 : x - Step 2: Convert to fraction form
211,214.22/316,912.05 = 140,161.70/x - Step 3: Cross multiply
211,214.22x = 316,912.05 × 140,161.70 - Step 4: Simplify right side
211,214.22x = 44,418,930,093.92 - Step 5: Solve for x
x = 44,418,930,093.92/211,214.22 - Step 6: Final answer
x = 210,302.74
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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.