Finding the Fourth Proportional to 490,207.20, 735,310.80 and 157,783.20
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Solution
The fourth proportional to 490,207.20, 735,310.80 and 157,783.20 is: 236,674.80
Step by Step Solution
- Step 1: Write the proportion equation
490,207.20 : 735,310.80 = 157,783.20 : x - Step 2: Convert to fraction form
490,207.20/735,310.80 = 157,783.20/x - Step 3: Cross multiply
490,207.20x = 735,310.80 × 157,783.20 - Step 4: Simplify right side
490,207.20x = 116,019,691,018.56 - Step 5: Solve for x
x = 116,019,691,018.56/490,207.20 - Step 6: Final answer
x = 236,674.80
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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.