Finding the Fourth Proportional to 201,772.80, 278,313.12 and 126,190.08
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Solution
The fourth proportional to 201,772.80, 278,313.12 and 126,190.08 is: 174,058.92
Step by Step Solution
- Step 1: Write the proportion equation
201,772.80 : 278,313.12 = 126,190.08 : x - Step 2: Convert to fraction form
201,772.80/278,313.12 = 126,190.08/x - Step 3: Cross multiply
201,772.80x = 278,313.12 × 126,190.08 - Step 4: Simplify right side
201,772.80x = 35,120,354,877.85 - Step 5: Solve for x
x = 35,120,354,877.85/201,772.80 - Step 6: Final answer
x = 174,058.92
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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.