Finding the Fourth Proportional to 331,531.80, 497,297.70 and 82,213.80
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Solution
The fourth proportional to 331,531.80, 497,297.70 and 82,213.80 is: 123,320.70
Step by Step Solution
- Step 1: Write the proportion equation
331,531.80 : 497,297.70 = 82,213.80 : x - Step 2: Convert to fraction form
331,531.80/497,297.70 = 82,213.80/x - Step 3: Cross multiply
331,531.80x = 497,297.70 × 82,213.80 - Step 4: Simplify right side
331,531.80x = 40,884,733,648.26 - Step 5: Solve for x
x = 40,884,733,648.26/331,531.80 - Step 6: Final answer
x = 123,320.70
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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.