Finding the Fourth Proportional to 207,706.05, 286,634.61 and 112,212.75
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Solution
The fourth proportional to 207,706.05, 286,634.61 and 112,212.75 is: 154,853.74
Step by Step Solution
- Step 1: Write the proportion equation
207,706.05 : 286,634.61 = 112,212.75 : x - Step 2: Convert to fraction form
207,706.05/286,634.61 = 112,212.75/x - Step 3: Cross multiply
207,706.05x = 286,634.61 × 112,212.75 - Step 4: Simplify right side
207,706.05x = 32,164,057,833.28 - Step 5: Solve for x
x = 32,164,057,833.28/207,706.05 - Step 6: Final answer
x = 154,853.74
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1.5x scale
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.