Finding the Fourth Proportional to 203,424.40, 305,063.70 and 103,551.40
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Solution
The fourth proportional to 203,424.40, 305,063.70 and 103,551.40 is: 155,289.99
Step by Step Solution
- Step 1: Write the proportion equation
203,424.40 : 305,063.70 = 103,551.40 : x - Step 2: Convert to fraction form
203,424.40/305,063.70 = 103,551.40/x - Step 3: Cross multiply
203,424.40x = 305,063.70 × 103,551.40 - Step 4: Simplify right side
203,424.40x = 31,589,773,224.18 - Step 5: Solve for x
x = 31,589,773,224.18/203,424.40 - Step 6: Final answer
x = 155,289.99
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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.