Finding the Fourth Proportional to 414,421.14, 622,213.29 and 212,161.71
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Solution
The fourth proportional to 414,421.14, 622,213.29 and 212,161.71 is: 318,540.30
Step by Step Solution
- Step 1: Write the proportion equation
414,421.14 : 622,213.29 = 212,161.71 : x - Step 2: Convert to fraction form
414,421.14/622,213.29 = 212,161.71/x - Step 3: Cross multiply
414,421.14x = 622,213.29 × 212,161.71 - Step 4: Simplify right side
414,421.14x = 132,009,835,591.13 - Step 5: Solve for x
x = 132,009,835,591.13/414,421.14 - Step 6: Final answer
x = 318,540.30
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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.