Finding the Fourth Proportional to 287,336.79, 396,509.24 and 158,270.99
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Solution
The fourth proportional to 287,336.79, 396,509.24 and 158,270.99 is: 218,405.40
Step by Step Solution
- Step 1: Write the proportion equation
287,336.79 : 396,509.24 = 158,270.99 : x - Step 2: Convert to fraction form
287,336.79/396,509.24 = 158,270.99/x - Step 3: Cross multiply
287,336.79x = 396,509.24 × 158,270.99 - Step 4: Simplify right side
287,336.79x = 62,755,907,185.05 - Step 5: Solve for x
x = 62,755,907,185.05/287,336.79 - Step 6: Final answer
x = 218,405.40
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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.