Finding the Fourth Proportional to 252,575.21, 378,661.62 and 145,838.12
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Solution
The fourth proportional to 252,575.21, 378,661.62 and 145,838.12 is: 218,641.02
Step by Step Solution
- Step 1: Write the proportion equation
252,575.21 : 378,661.62 = 145,838.12 : x - Step 2: Convert to fraction form
252,575.21/378,661.62 = 145,838.12/x - Step 3: Cross multiply
252,575.21x = 378,661.62 × 145,838.12 - Step 4: Simplify right side
252,575.21x = 55,223,299,723.61 - Step 5: Solve for x
x = 55,223,299,723.61/252,575.21 - Step 6: Final answer
x = 218,641.02
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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.