Finding the Fourth Proportional to 303,965.40, 456,207.30 and 135,744.60
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Solution
The fourth proportional to 303,965.40, 456,207.30 and 135,744.60 is: 203,732.65
Step by Step Solution
- Step 1: Write the proportion equation
303,965.40 : 456,207.30 = 135,744.60 : x - Step 2: Convert to fraction form
303,965.40/456,207.30 = 135,744.60/x - Step 3: Cross multiply
303,965.40x = 456,207.30 × 135,744.60 - Step 4: Simplify right side
303,965.40x = 61,927,677,455.58 - Step 5: Solve for x
x = 61,927,677,455.58/303,965.40 - Step 6: Final answer
x = 203,732.65
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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.