Finding the Fourth Proportional to 238,311.24, 328,868.22 and 129,414.63
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Solution
The fourth proportional to 238,311.24, 328,868.22 and 129,414.63 is: 178,591.49
Step by Step Solution
- Step 1: Write the proportion equation
238,311.24 : 328,868.22 = 129,414.63 : x - Step 2: Convert to fraction form
238,311.24/328,868.22 = 129,414.63/x - Step 3: Cross multiply
238,311.24x = 328,868.22 × 129,414.63 - Step 4: Simplify right side
238,311.24x = 42,560,359,010.06 - Step 5: Solve for x
x = 42,560,359,010.06/238,311.24 - Step 6: Final answer
x = 178,591.49
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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.