Finding the Fourth Proportional to 208,305.28, 312,568.08 and 113,603.68
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Solution
The fourth proportional to 208,305.28, 312,568.08 and 113,603.68 is: 170,465.60
Step by Step Solution
- Step 1: Write the proportion equation
208,305.28 : 312,568.08 = 113,603.68 : x - Step 2: Convert to fraction form
208,305.28/312,568.08 = 113,603.68/x - Step 3: Cross multiply
208,305.28x = 312,568.08 × 113,603.68 - Step 4: Simplify right side
208,305.28x = 35,508,884,138.53 - Step 5: Solve for x
x = 35,508,884,138.53/208,305.28 - Step 6: Final answer
x = 170,465.60
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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.