Finding the Fourth Proportional to 287,539.19, 396,805.66 and 166,752.09
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Solution
The fourth proportional to 287,539.19, 396,805.66 and 166,752.09 is: 230,118.80
Step by Step Solution
- Step 1: Write the proportion equation
287,539.19 : 396,805.66 = 166,752.09 : x - Step 2: Convert to fraction form
287,539.19/396,805.66 = 166,752.09/x - Step 3: Cross multiply
287,539.19x = 396,805.66 × 166,752.09 - Step 4: Simplify right side
287,539.19x = 66,168,173,128.83 - Step 5: Solve for x
x = 66,168,173,128.83/287,539.19 - Step 6: Final answer
x = 230,118.80
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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.