Finding the Fourth Proportional to 218,790.97, 328,067.99 and 98,707.59
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Solution
The fourth proportional to 218,790.97, 328,067.99 and 98,707.59 is: 148,007.94
Step by Step Solution
- Step 1: Write the proportion equation
218,790.97 : 328,067.99 = 98,707.59 : x - Step 2: Convert to fraction form
218,790.97/328,067.99 = 98,707.59/x - Step 3: Cross multiply
218,790.97x = 328,067.99 × 98,707.59 - Step 4: Simplify right side
218,790.97x = 32,382,800,649.04 - Step 5: Solve for x
x = 32,382,800,649.04/218,790.97 - Step 6: Final answer
x = 148,007.94
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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.