Finding the Fourth Proportional to 215,806.26, 297,851.10 and 135,302.78
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Solution
The fourth proportional to 215,806.26, 297,851.10 and 135,302.78 is: 186,741.95
Step by Step Solution
- Step 1: Write the proportion equation
215,806.26 : 297,851.10 = 135,302.78 : x - Step 2: Convert to fraction form
215,806.26/297,851.10 = 135,302.78/x - Step 3: Cross multiply
215,806.26x = 297,851.10 × 135,302.78 - Step 4: Simplify right side
215,806.26x = 40,300,081,856.06 - Step 5: Solve for x
x = 40,300,081,856.06/215,806.26 - Step 6: Final answer
x = 186,741.95
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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.