Finding the Fourth Proportional to 203,149.20, 304,775.62 and 128,797.68
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Solution
The fourth proportional to 203,149.20, 304,775.62 and 128,797.68 is: 193,229.37
Step by Step Solution
- Step 1: Write the proportion equation
203,149.20 : 304,775.62 = 128,797.68 : x - Step 2: Convert to fraction form
203,149.20/304,775.62 = 128,797.68/x - Step 3: Cross multiply
203,149.20x = 304,775.62 × 128,797.68 - Step 4: Simplify right side
203,149.20x = 39,254,392,776.56 - Step 5: Solve for x
x = 39,254,392,776.56/203,149.20 - Step 6: Final answer
x = 193,229.37
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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.