Finding the Fourth Proportional to 386,861.27, 533,731.70 and 252,803.03
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Solution
The fourth proportional to 386,861.27, 533,731.70 and 252,803.03 is: 348,778.75
Step by Step Solution
- Step 1: Write the proportion equation
386,861.27 : 533,731.70 = 252,803.03 : x - Step 2: Convert to fraction form
386,861.27/533,731.70 = 252,803.03/x - Step 3: Cross multiply
386,861.27x = 533,731.70 × 252,803.03 - Step 4: Simplify right side
386,861.27x = 134,928,989,703.04 - Step 5: Solve for x
x = 134,928,989,703.04/386,861.27 - Step 6: Final answer
x = 348,778.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.