Finding the Fourth Proportional to 427,052.20, 640,286.70 and 202,520.20
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Solution
The fourth proportional to 427,052.20, 640,286.70 and 202,520.20 is: 303,642.02
Step by Step Solution
- Step 1: Write the proportion equation
427,052.20 : 640,286.70 = 202,520.20 : x - Step 2: Convert to fraction form
427,052.20/640,286.70 = 202,520.20/x - Step 3: Cross multiply
427,052.20x = 640,286.70 × 202,520.20 - Step 4: Simplify right side
427,052.20x = 129,670,990,541.34 - Step 5: Solve for x
x = 129,670,990,541.34/427,052.20 - Step 6: Final answer
x = 303,642.02
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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.