Finding the Fourth Proportional to 260,192.20, 389,632.20 and 207,704.20
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Solution
The fourth proportional to 260,192.20, 389,632.20 and 207,704.20 is: 311,032.55
Step by Step Solution
- Step 1: Write the proportion equation
260,192.20 : 389,632.20 = 207,704.20 : x - Step 2: Convert to fraction form
260,192.20/389,632.20 = 207,704.20/x - Step 3: Cross multiply
260,192.20x = 389,632.20 × 207,704.20 - Step 4: Simplify right side
260,192.20x = 80,928,244,395.24 - Step 5: Solve for x
x = 80,928,244,395.24/260,192.20 - Step 6: Final answer
x = 311,032.55
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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.