Finding the Fourth Proportional to 260,112.20, 389,512.20 and 207,624.20
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Solution
The fourth proportional to 260,112.20, 389,512.20 and 207,624.20 is: 310,912.59
Step by Step Solution
- Step 1: Write the proportion equation
260,112.20 : 389,512.20 = 207,624.20 : x - Step 2: Convert to fraction form
260,112.20/389,512.20 = 207,624.20/x - Step 3: Cross multiply
260,112.20x = 389,512.20 × 207,624.20 - Step 4: Simplify right side
260,112.20x = 80,872,158,915.24 - Step 5: Solve for x
x = 80,872,158,915.24/260,112.20 - Step 6: Final answer
x = 310,912.59
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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.