Finding the Fourth Proportional to 381,239.38, 526,173.33 and 211,528.18
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Solution
The fourth proportional to 381,239.38, 526,173.33 and 211,528.18 is: 291,943.84
Step by Step Solution
- Step 1: Write the proportion equation
381,239.38 : 526,173.33 = 211,528.18 : x - Step 2: Convert to fraction form
381,239.38/526,173.33 = 211,528.18/x - Step 3: Cross multiply
381,239.38x = 526,173.33 × 211,528.18 - Step 4: Simplify right side
381,239.38x = 111,300,486,859.44 - Step 5: Solve for x
x = 111,300,486,859.44/381,239.38 - Step 6: Final answer
x = 291,943.84
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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.