Finding the Fourth Proportional to 307,591.80, 461,387.70 and 276,487.80
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Solution
The fourth proportional to 307,591.80, 461,387.70 and 276,487.80 is: 414,731.70
Step by Step Solution
- Step 1: Write the proportion equation
307,591.80 : 461,387.70 = 276,487.80 : x - Step 2: Convert to fraction form
307,591.80/461,387.70 = 276,487.80/x - Step 3: Cross multiply
307,591.80x = 461,387.70 × 276,487.80 - Step 4: Simplify right side
307,591.80x = 127,568,070,120.06 - Step 5: Solve for x
x = 127,568,070,120.06/307,591.80 - Step 6: Final answer
x = 414,731.70
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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.