Finding the Fourth Proportional to 210,528.26, 290,723.02 and 135,207.98
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Solution
The fourth proportional to 210,528.26, 290,723.02 and 135,207.98 is: 186,711.62
Step by Step Solution
- Step 1: Write the proportion equation
210,528.26 : 290,723.02 = 135,207.98 : x - Step 2: Convert to fraction form
210,528.26/290,723.02 = 135,207.98/x - Step 3: Cross multiply
210,528.26x = 290,723.02 × 135,207.98 - Step 4: Simplify right side
210,528.26x = 39,308,072,273.70 - Step 5: Solve for x
x = 39,308,072,273.70/210,528.26 - Step 6: Final answer
x = 186,711.62
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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.