Finding the Fourth Proportional to 206,344.24, 309,603.84 and 112,740.64
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Solution
The fourth proportional to 206,344.24, 309,603.84 and 112,740.64 is: 169,158.75
Step by Step Solution
- Step 1: Write the proportion equation
206,344.24 : 309,603.84 = 112,740.64 : x - Step 2: Convert to fraction form
206,344.24/309,603.84 = 112,740.64/x - Step 3: Cross multiply
206,344.24x = 309,603.84 × 112,740.64 - Step 4: Simplify right side
206,344.24x = 34,904,933,520.04 - Step 5: Solve for x
x = 34,904,933,520.04/206,344.24 - Step 6: Final answer
x = 169,158.75
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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.