Finding the Fourth Proportional to 203,025.13, 280,170.62 and 112,381.07
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Solution
The fourth proportional to 203,025.13, 280,170.62 and 112,381.07 is: 155,083.63
Step by Step Solution
- Step 1: Write the proportion equation
203,025.13 : 280,170.62 = 112,381.07 : x - Step 2: Convert to fraction form
203,025.13/280,170.62 = 112,381.07/x - Step 3: Cross multiply
203,025.13x = 280,170.62 × 112,381.07 - Step 4: Simplify right side
203,025.13x = 31,485,873,496.26 - Step 5: Solve for x
x = 31,485,873,496.26/203,025.13 - Step 6: Final answer
x = 155,083.63
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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.