Finding the Fourth Proportional to 287,201.28, 396,334.32 and 158,136.99
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Solution
The fourth proportional to 287,201.28, 396,334.32 and 158,136.99 is: 218,227.15
Step by Step Solution
- Step 1: Write the proportion equation
287,201.28 : 396,334.32 = 158,136.99 : x - Step 2: Convert to fraction form
287,201.28/396,334.32 = 158,136.99/x - Step 3: Cross multiply
287,201.28x = 396,334.32 × 158,136.99 - Step 4: Simplify right side
287,201.28x = 62,675,116,398.50 - Step 5: Solve for x
x = 62,675,116,398.50/287,201.28 - Step 6: Final answer
x = 218,227.15
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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.