Finding the Fourth Proportional to 646,761.80, 970,142.70 and 203,529.80
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Solution
The fourth proportional to 646,761.80, 970,142.70 and 203,529.80 is: 305,294.70
Step by Step Solution
- Step 1: Write the proportion equation
646,761.80 : 970,142.70 = 203,529.80 : x - Step 2: Convert to fraction form
646,761.80/970,142.70 = 203,529.80/x - Step 3: Cross multiply
646,761.80x = 970,142.70 × 203,529.80 - Step 4: Simplify right side
646,761.80x = 197,452,949,702.46 - Step 5: Solve for x
x = 197,452,949,702.46/646,761.80 - Step 6: Final answer
x = 305,294.70
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Similar ratio
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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.