Finding the Fourth Proportional to 512,191.79, 768,107.30 and 170,542.44
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Solution
The fourth proportional to 512,191.79, 768,107.30 and 170,542.44 is: 255,753.60
Step by Step Solution
- Step 1: Write the proportion equation
512,191.79 : 768,107.30 = 170,542.44 : x - Step 2: Convert to fraction form
512,191.79/768,107.30 = 170,542.44/x - Step 3: Cross multiply
512,191.79x = 768,107.30 × 170,542.44 - Step 4: Simplify right side
512,191.79x = 130,994,892,271.10 - Step 5: Solve for x
x = 130,994,892,271.10/512,191.79 - Step 6: Final answer
x = 255,753.60
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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.