Finding the Fourth Proportional to 207,851.92, 286,644.36 and 136,205.92
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Solution
The fourth proportional to 207,851.92, 286,644.36 and 136,205.92 is: 187,838.82
Step by Step Solution
- Step 1: Write the proportion equation
207,851.92 : 286,644.36 = 136,205.92 : x - Step 2: Convert to fraction form
207,851.92/286,644.36 = 136,205.92/x - Step 3: Cross multiply
207,851.92x = 286,644.36 × 136,205.92 - Step 4: Simplify right side
207,851.92x = 39,042,658,766.61 - Step 5: Solve for x
x = 39,042,658,766.61/207,851.92 - Step 6: Final answer
x = 187,838.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.