Finding the Fourth Proportional to 207,853.92, 286,647.12 and 136,207.92
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Solution
The fourth proportional to 207,853.92, 286,647.12 and 136,207.92 is: 187,841.58
Step by Step Solution
- Step 1: Write the proportion equation
207,853.92 : 286,647.12 = 136,207.92 : x - Step 2: Convert to fraction form
207,853.92/286,647.12 = 136,207.92/x - Step 3: Cross multiply
207,853.92x = 286,647.12 × 136,207.92 - Step 4: Simplify right side
207,853.92x = 39,043,607,989.19 - Step 5: Solve for x
x = 39,043,607,989.19/207,853.92 - Step 6: Final answer
x = 187,841.58
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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.