Finding the Fourth Proportional to 217,874.26, 300,619.84 and 127,189.07
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Solution
The fourth proportional to 217,874.26, 300,619.84 and 127,189.07 is: 175,493.69
Step by Step Solution
- Step 1: Write the proportion equation
217,874.26 : 300,619.84 = 127,189.07 : x - Step 2: Convert to fraction form
217,874.26/300,619.84 = 127,189.07/x - Step 3: Cross multiply
217,874.26x = 300,619.84 × 127,189.07 - Step 4: Simplify right side
217,874.26x = 38,235,557,873.15 - Step 5: Solve for x
x = 38,235,557,873.15/217,874.26 - Step 6: Final answer
x = 175,493.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.