Finding the Fourth Proportional to 399,120.68, 550,791.62 and 235,782.52
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Solution
The fourth proportional to 399,120.68, 550,791.62 and 235,782.52 is: 325,382.88
Step by Step Solution
- Step 1: Write the proportion equation
399,120.68 : 550,791.62 = 235,782.52 : x - Step 2: Convert to fraction form
399,120.68/550,791.62 = 235,782.52/x - Step 3: Cross multiply
399,120.68x = 550,791.62 × 235,782.52 - Step 4: Simplify right side
399,120.68x = 129,867,036,158.48 - Step 5: Solve for x
x = 129,867,036,158.48/399,120.68 - Step 6: Final answer
x = 325,382.88
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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.