Finding the Fourth Proportional to 206,510.40, 309,767.76 and 88,107.84
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Solution
The fourth proportional to 206,510.40, 309,767.76 and 88,107.84 is: 132,162.68
Step by Step Solution
- Step 1: Write the proportion equation
206,510.40 : 309,767.76 = 88,107.84 : x - Step 2: Convert to fraction form
206,510.40/309,767.76 = 88,107.84/x - Step 3: Cross multiply
206,510.40x = 309,767.76 × 88,107.84 - Step 4: Simplify right side
206,510.40x = 27,292,968,235.24 - Step 5: Solve for x
x = 27,292,968,235.24/206,510.40 - Step 6: Final answer
x = 132,162.68
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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.