Finding the Fourth Proportional to 208,076.68, 311,927.64 and 74,863.28
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Solution
The fourth proportional to 208,076.68, 311,927.64 and 74,863.28 is: 112,227.50
Step by Step Solution
- Step 1: Write the proportion equation
208,076.68 : 311,927.64 = 74,863.28 : x - Step 2: Convert to fraction form
208,076.68/311,927.64 = 74,863.28/x - Step 3: Cross multiply
208,076.68x = 311,927.64 × 74,863.28 - Step 4: Simplify right side
208,076.68x = 23,351,926,253.06 - Step 5: Solve for x
x = 23,351,926,253.06/208,076.68 - Step 6: Final answer
x = 112,227.50
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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.