Finding the Fourth Proportional to 207,512.78, 286,284.49 and 126,800.19
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Solution
The fourth proportional to 207,512.78, 286,284.49 and 126,800.19 is: 174,933.46
Step by Step Solution
- Step 1: Write the proportion equation
207,512.78 : 286,284.49 = 126,800.19 : x - Step 2: Convert to fraction form
207,512.78/286,284.49 = 126,800.19/x - Step 3: Cross multiply
207,512.78x = 286,284.49 × 126,800.19 - Step 4: Simplify right side
207,512.78x = 36,300,927,409.05 - Step 5: Solve for x
x = 36,300,927,409.05/207,512.78 - Step 6: Final answer
x = 174,933.46
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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.