Finding the Fourth Proportional to 203,220.21, 305,019.45 and 103,455.09
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Solution
The fourth proportional to 203,220.21, 305,019.45 and 103,455.09 is: 155,278.92
Step by Step Solution
- Step 1: Write the proportion equation
203,220.21 : 305,019.45 = 103,455.09 : x - Step 2: Convert to fraction form
203,220.21/305,019.45 = 103,455.09/x - Step 3: Cross multiply
203,220.21x = 305,019.45 × 103,455.09 - Step 4: Simplify right side
203,220.21x = 31,555,814,651.50 - Step 5: Solve for x
x = 31,555,814,651.50/203,220.21 - Step 6: Final answer
x = 155,278.92
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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.