Finding the Fourth Proportional to 212,382.24, 318,770.56 and 107,275.12
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Solution
The fourth proportional to 212,382.24, 318,770.56 and 107,275.12 is: 161,012.29
Step by Step Solution
- Step 1: Write the proportion equation
212,382.24 : 318,770.56 = 107,275.12 : x - Step 2: Convert to fraction form
212,382.24/318,770.56 = 107,275.12/x - Step 3: Cross multiply
212,382.24x = 318,770.56 × 107,275.12 - Step 4: Simplify right side
212,382.24x = 34,196,150,076.47 - Step 5: Solve for x
x = 34,196,150,076.47/212,382.24 - Step 6: Final answer
x = 161,012.29
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.