Finding the Fourth Proportional to 431,351.18, 647,026.77 and 131,832.62
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Solution
The fourth proportional to 431,351.18, 647,026.77 and 131,832.62 is: 197,748.93
Step by Step Solution
- Step 1: Write the proportion equation
431,351.18 : 647,026.77 = 131,832.62 : x - Step 2: Convert to fraction form
431,351.18/647,026.77 = 131,832.62/x - Step 3: Cross multiply
431,351.18x = 647,026.77 × 131,832.62 - Step 4: Simplify right side
431,351.18x = 85,299,234,299.24 - Step 5: Solve for x
x = 85,299,234,299.24/431,351.18 - Step 6: Final answer
x = 197,748.93
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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.