Finding the Fourth Proportional to 236,434.21, 326,278.73 and 129,004.18
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Solution
The fourth proportional to 236,434.21, 326,278.73 and 129,004.18 is: 178,025.50
Step by Step Solution
- Step 1: Write the proportion equation
236,434.21 : 326,278.73 = 129,004.18 : x - Step 2: Convert to fraction form
236,434.21/326,278.73 = 129,004.18/x - Step 3: Cross multiply
236,434.21x = 326,278.73 × 129,004.18 - Step 4: Simplify right side
236,434.21x = 42,091,317,738.68 - Step 5: Solve for x
x = 42,091,317,738.68/236,434.21 - Step 6: Final answer
x = 178,025.50
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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.