Finding the Fourth Proportional to 285,236.10, 393,652.71 and 170,515.13
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Solution
The fourth proportional to 285,236.10, 393,652.71 and 170,515.13 is: 235,326.95
Step by Step Solution
- Step 1: Write the proportion equation
285,236.10 : 393,652.71 = 170,515.13 : x - Step 2: Convert to fraction form
285,236.10/393,652.71 = 170,515.13/x - Step 3: Cross multiply
285,236.10x = 393,652.71 × 170,515.13 - Step 4: Simplify right side
285,236.10x = 67,123,741,052.24 - Step 5: Solve for x
x = 67,123,741,052.24/285,236.10 - Step 6: Final answer
x = 235,326.95
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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.