Finding the Fourth Proportional to 318,739.87, 439,862.62 and 182,778.94
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Solution
The fourth proportional to 318,739.87, 439,862.62 and 182,778.94 is: 252,235.85
Step by Step Solution
- Step 1: Write the proportion equation
318,739.87 : 439,862.62 = 182,778.94 : x - Step 2: Convert to fraction form
318,739.87/439,862.62 = 182,778.94/x - Step 3: Cross multiply
318,739.87x = 439,862.62 × 182,778.94 - Step 4: Simplify right side
318,739.87x = 80,397,621,229.91 - Step 5: Solve for x
x = 80,397,621,229.91/318,739.87 - Step 6: Final answer
x = 252,235.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.