Finding the Fourth Proportional to 381,279.38, 526,228.62 and 211,568.18
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Solution
The fourth proportional to 381,279.38, 526,228.62 and 211,568.18 is: 291,999.09
Step by Step Solution
- Step 1: Write the proportion equation
381,279.38 : 526,228.62 = 211,568.18 : x - Step 2: Convert to fraction form
381,279.38/526,228.62 = 211,568.18/x - Step 3: Cross multiply
381,279.38x = 526,228.62 × 211,568.18 - Step 4: Simplify right side
381,279.38x = 111,333,231,397.31 - Step 5: Solve for x
x = 111,333,231,397.31/381,279.38 - Step 6: Final answer
x = 291,999.09
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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.