Finding the Fourth Proportional to 255,919.65, 383,879.43 and 137,427.99
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Solution
The fourth proportional to 255,919.65, 383,879.43 and 137,427.99 is: 206,141.96
Step by Step Solution
- Step 1: Write the proportion equation
255,919.65 : 383,879.43 = 137,427.99 : x - Step 2: Convert to fraction form
255,919.65/383,879.43 = 137,427.99/x - Step 3: Cross multiply
255,919.65x = 383,879.43 × 137,427.99 - Step 4: Simplify right side
255,919.65x = 52,755,778,467.25 - Step 5: Solve for x
x = 52,755,778,467.25/255,919.65 - Step 6: Final answer
x = 206,141.96
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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.