Finding the Fourth Proportional to 128,249.04, 192,373.61 and 33,478.96
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Solution
The fourth proportional to 128,249.04, 192,373.61 and 33,478.96 is: 50,218.45
Step by Step Solution
- Step 1: Write the proportion equation
128,249.04 : 192,373.61 = 33,478.96 : x - Step 2: Convert to fraction form
128,249.04/192,373.61 = 33,478.96/x - Step 3: Cross multiply
128,249.04x = 192,373.61 × 33,478.96 - Step 4: Simplify right side
128,249.04x = 6,440,468,394.25 - Step 5: Solve for x
x = 6,440,468,394.25/128,249.04 - Step 6: Final answer
x = 50,218.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.