Finding the Fourth Proportional to 236,658.28, 326,585.20 and 129,232.84
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Solution
The fourth proportional to 236,658.28, 326,585.20 and 129,232.84 is: 178,339.56
Step by Step Solution
- Step 1: Write the proportion equation
236,658.28 : 326,585.20 = 129,232.84 : x - Step 2: Convert to fraction form
236,658.28/326,585.20 = 129,232.84/x - Step 3: Cross multiply
236,658.28x = 326,585.20 × 129,232.84 - Step 4: Simplify right side
236,658.28x = 42,205,532,897.97 - Step 5: Solve for x
x = 42,205,532,897.97/236,658.28 - Step 6: Final answer
x = 178,339.56
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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.