Finding the Fourth Proportional to 331,361.70, 497,107.35 and 141,821.70
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Solution
The fourth proportional to 331,361.70, 497,107.35 and 141,821.70 is: 212,760.28
Step by Step Solution
- Step 1: Write the proportion equation
331,361.70 : 497,107.35 = 141,821.70 : x - Step 2: Convert to fraction form
331,361.70/497,107.35 = 141,821.70/x - Step 3: Cross multiply
331,361.70x = 497,107.35 × 141,821.70 - Step 4: Simplify right side
331,361.70x = 70,500,609,459.50 - Step 5: Solve for x
x = 70,500,609,459.50/331,361.70 - Step 6: Final answer
x = 212,760.28
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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.