Finding the Fourth Proportional to 312,253.92, 430,991.15 and 203,629.02
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Solution
The fourth proportional to 312,253.92, 430,991.15 and 203,629.02 is: 281,060.70
Step by Step Solution
- Step 1: Write the proportion equation
312,253.92 : 430,991.15 = 203,629.02 : x - Step 2: Convert to fraction form
312,253.92/430,991.15 = 203,629.02/x - Step 3: Cross multiply
312,253.92x = 430,991.15 × 203,629.02 - Step 4: Simplify right side
312,253.92x = 87,762,304,485.03 - Step 5: Solve for x
x = 87,762,304,485.03/312,253.92 - Step 6: Final answer
x = 281,060.70
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1.5x scale
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.