Finding the Fourth Proportional to 259,614.20, 388,765.20 and 207,126.20
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Solution
The fourth proportional to 259,614.20, 388,765.20 and 207,126.20 is: 310,165.85
Step by Step Solution
- Step 1: Write the proportion equation
259,614.20 : 388,765.20 = 207,126.20 : x - Step 2: Convert to fraction form
259,614.20/388,765.20 = 207,126.20/x - Step 3: Cross multiply
259,614.20x = 388,765.20 × 207,126.20 - Step 4: Simplify right side
259,614.20x = 80,523,458,568.24 - Step 5: Solve for x
x = 80,523,458,568.24/259,614.20 - Step 6: Final answer
x = 310,165.85
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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.