Finding the Fourth Proportional to 203,311.96, 280,220.28 and 135,207.28
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Solution
The fourth proportional to 203,311.96, 280,220.28 and 135,207.28 is: 186,353.14
Step by Step Solution
- Step 1: Write the proportion equation
203,311.96 : 280,220.28 = 135,207.28 : x - Step 2: Convert to fraction form
203,311.96/280,220.28 = 135,207.28/x - Step 3: Cross multiply
203,311.96x = 280,220.28 × 135,207.28 - Step 4: Simplify right side
203,311.96x = 37,887,821,859.64 - Step 5: Solve for x
x = 37,887,821,859.64/203,311.96 - Step 6: Final answer
x = 186,353.14
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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.