Finding the Fourth Proportional to 381,192.96, 526,046.63 and 211,427.09
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Solution
The fourth proportional to 381,192.96, 526,046.63 and 211,427.09 is: 291,769.57
Step by Step Solution
- Step 1: Write the proportion equation
381,192.96 : 526,046.63 = 211,427.09 : x - Step 2: Convert to fraction form
381,192.96/526,046.63 = 211,427.09/x - Step 3: Cross multiply
381,192.96x = 526,046.63 × 211,427.09 - Step 4: Simplify right side
381,192.96x = 111,220,505,585.65 - Step 5: Solve for x
x = 111,220,505,585.65/381,192.96 - Step 6: Final answer
x = 291,769.57
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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.