Finding the Fourth Proportional to 512,660.80, 768,760.80 and 197,012.80
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Solution
The fourth proportional to 512,660.80, 768,760.80 and 197,012.80 is: 295,430.66
Step by Step Solution
- Step 1: Write the proportion equation
512,660.80 : 768,760.80 = 197,012.80 : x - Step 2: Convert to fraction form
512,660.80/768,760.80 = 197,012.80/x - Step 3: Cross multiply
512,660.80x = 768,760.80 × 197,012.80 - Step 4: Simplify right side
512,660.80x = 151,455,717,738.24 - Step 5: Solve for x
x = 151,455,717,738.24/512,660.80 - Step 6: Final answer
x = 295,430.66
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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.