Finding the Fourth Proportional to 183,013.20, 274,519.80 and 129,869.10
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Solution
The fourth proportional to 183,013.20, 274,519.80 and 129,869.10 is: 194,803.65
Step by Step Solution
- Step 1: Write the proportion equation
183,013.20 : 274,519.80 = 129,869.10 : x - Step 2: Convert to fraction form
183,013.20/274,519.80 = 129,869.10/x - Step 3: Cross multiply
183,013.20x = 274,519.80 × 129,869.10 - Step 4: Simplify right side
183,013.20x = 35,651,639,358.18 - Step 5: Solve for x
x = 35,651,639,358.18/183,013.20 - Step 6: Final answer
x = 194,803.65
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1.5x scale
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.