Finding the Fourth Proportional to 319,690.57, 479,625.77 and 139,791.82
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Solution
The fourth proportional to 319,690.57, 479,625.77 and 139,791.82 is: 209,727.05
Step by Step Solution
- Step 1: Write the proportion equation
319,690.57 : 479,625.77 = 139,791.82 : x - Step 2: Convert to fraction form
319,690.57/479,625.77 = 139,791.82/x - Step 3: Cross multiply
319,690.57x = 479,625.77 × 139,791.82 - Step 4: Simplify right side
319,690.57x = 67,047,758,608.24 - Step 5: Solve for x
x = 67,047,758,608.24/319,690.57 - Step 6: Final answer
x = 209,727.05
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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.