Finding the Fourth Proportional to 312,884.08, 431,839.56 and 185,629.84
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Solution
The fourth proportional to 312,884.08, 431,839.56 and 185,629.84 is: 256,204.50
Step by Step Solution
- Step 1: Write the proportion equation
312,884.08 : 431,839.56 = 185,629.84 : x - Step 2: Convert to fraction form
312,884.08/431,839.56 = 185,629.84/x - Step 3: Cross multiply
312,884.08x = 431,839.56 × 185,629.84 - Step 4: Simplify right side
312,884.08x = 80,162,308,428.47 - Step 5: Solve for x
x = 80,162,308,428.47/312,884.08 - Step 6: Final answer
x = 256,204.50
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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.