Finding the Fourth Proportional to 208,575.69, 287,816.73 and 117,919.08
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Solution
The fourth proportional to 208,575.69, 287,816.73 and 117,919.08 is: 162,718.31
Step by Step Solution
- Step 1: Write the proportion equation
208,575.69 : 287,816.73 = 117,919.08 : x - Step 2: Convert to fraction form
208,575.69/287,816.73 = 117,919.08/x - Step 3: Cross multiply
208,575.69x = 287,816.73 × 117,919.08 - Step 4: Simplify right side
208,575.69x = 33,939,084,010.21 - Step 5: Solve for x
x = 33,939,084,010.21/208,575.69 - Step 6: Final answer
x = 162,718.31
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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.