Finding the Fourth Proportional to 259,720.20, 388,924.20 and 207,232.20
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Solution
The fourth proportional to 259,720.20, 388,924.20 and 207,232.20 is: 310,324.79
Step by Step Solution
- Step 1: Write the proportion equation
259,720.20 : 388,924.20 = 207,232.20 : x - Step 2: Convert to fraction form
259,720.20/388,924.20 = 207,232.20/x - Step 3: Cross multiply
259,720.20x = 388,924.20 × 207,232.20 - Step 4: Simplify right side
259,720.20x = 80,597,617,599.24 - Step 5: Solve for x
x = 80,597,617,599.24/259,720.20 - Step 6: Final answer
x = 310,324.79
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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.