Finding the Fourth Proportional to 170,857.70, 256,286.55 and 87,913.70
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Solution
The fourth proportional to 170,857.70, 256,286.55 and 87,913.70 is: 131,870.55
Step by Step Solution
- Step 1: Write the proportion equation
170,857.70 : 256,286.55 = 87,913.70 : x - Step 2: Convert to fraction form
170,857.70/256,286.55 = 87,913.70/x - Step 3: Cross multiply
170,857.70x = 256,286.55 × 87,913.70 - Step 4: Simplify right side
170,857.70x = 22,531,098,870.74 - Step 5: Solve for x
x = 22,531,098,870.74/170,857.70 - Step 6: Final answer
x = 131,870.55
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1.5x scale
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.