Finding the Fourth Proportional to 203,119.97, 280,305.39 and 112,475.93
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Solution
The fourth proportional to 203,119.97, 280,305.39 and 112,475.93 is: 155,216.69
Step by Step Solution
- Step 1: Write the proportion equation
203,119.97 : 280,305.39 = 112,475.93 : x - Step 2: Convert to fraction form
203,119.97/280,305.39 = 112,475.93/x - Step 3: Cross multiply
203,119.97x = 280,305.39 × 112,475.93 - Step 4: Simplify right side
203,119.97x = 31,527,609,703.24 - Step 5: Solve for x
x = 31,527,609,703.24/203,119.97 - Step 6: Final answer
x = 155,216.69
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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.