Finding the Fourth Proportional to 170,207.70, 255,311.55 and 143,963.70
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Solution
The fourth proportional to 170,207.70, 255,311.55 and 143,963.70 is: 215,945.55
Step by Step Solution
- Step 1: Write the proportion equation
170,207.70 : 255,311.55 = 143,963.70 : x - Step 2: Convert to fraction form
170,207.70/255,311.55 = 143,963.70/x - Step 3: Cross multiply
170,207.70x = 255,311.55 × 143,963.70 - Step 4: Simplify right side
170,207.70x = 36,755,595,390.74 - Step 5: Solve for x
x = 36,755,595,390.74/170,207.70 - Step 6: Final answer
x = 215,945.55
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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.