Finding the Fourth Proportional to 252,365.06, 378,585.39 and 81,529.69
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Solution
The fourth proportional to 252,365.06, 378,585.39 and 81,529.69 is: 122,306.75
Step by Step Solution
- Step 1: Write the proportion equation
252,365.06 : 378,585.39 = 81,529.69 : x - Step 2: Convert to fraction form
252,365.06/378,585.39 = 81,529.69/x - Step 3: Cross multiply
252,365.06x = 378,585.39 × 81,529.69 - Step 4: Simplify right side
252,365.06x = 30,865,949,485.23 - Step 5: Solve for x
x = 30,865,949,485.23/252,365.06 - Step 6: Final answer
x = 122,306.75
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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.