Finding the Fourth Proportional to 207,921.24, 311,723.28 and 172,273.14
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Solution
The fourth proportional to 207,921.24, 311,723.28 and 172,273.14 is: 258,278.32
Step by Step Solution
- Step 1: Write the proportion equation
207,921.24 : 311,723.28 = 172,273.14 : x - Step 2: Convert to fraction form
207,921.24/311,723.28 = 172,273.14/x - Step 3: Cross multiply
207,921.24x = 311,723.28 × 172,273.14 - Step 4: Simplify right side
207,921.24x = 53,701,548,256.70 - Step 5: Solve for x
x = 53,701,548,256.70/207,921.24 - Step 6: Final answer
x = 258,278.32
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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.