Finding the Fourth Proportional to 287,086.24, 396,176.12 and 159,759.68
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Solution
The fourth proportional to 287,086.24, 396,176.12 and 159,759.68 is: 220,466.75
Step by Step Solution
- Step 1: Write the proportion equation
287,086.24 : 396,176.12 = 159,759.68 : x - Step 2: Convert to fraction form
287,086.24/396,176.12 = 159,759.68/x - Step 3: Cross multiply
287,086.24x = 396,176.12 × 159,759.68 - Step 4: Simplify right side
287,086.24x = 63,292,970,154.84 - Step 5: Solve for x
x = 63,292,970,154.84/287,086.24 - Step 6: Final answer
x = 220,466.75
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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.