Finding the Fourth Proportional to 211,811.73, 292,227.09 and 135,375.56
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Solution
The fourth proportional to 211,811.73, 292,227.09 and 135,375.56 is: 186,771.55
Step by Step Solution
- Step 1: Write the proportion equation
211,811.73 : 292,227.09 = 135,375.56 : x - Step 2: Convert to fraction form
211,811.73/292,227.09 = 135,375.56/x - Step 3: Cross multiply
211,811.73x = 292,227.09 × 135,375.56 - Step 4: Simplify right side
211,811.73x = 39,560,404,494.79 - Step 5: Solve for x
x = 39,560,404,494.79/211,811.73 - Step 6: Final answer
x = 186,771.55
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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.