Finding the Fourth Proportional to 331,531.70, 497,297.55 and 82,213.70
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Solution
The fourth proportional to 331,531.70, 497,297.55 and 82,213.70 is: 123,320.55
Step by Step Solution
- Step 1: Write the proportion equation
331,531.70 : 497,297.55 = 82,213.70 : x - Step 2: Convert to fraction form
331,531.70/497,297.55 = 82,213.70/x - Step 3: Cross multiply
331,531.70x = 497,297.55 × 82,213.70 - Step 4: Simplify right side
331,531.70x = 40,884,671,586.44 - Step 5: Solve for x
x = 40,884,671,586.44/331,531.70 - Step 6: Final answer
x = 123,320.55
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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.