Finding the Fourth Proportional to 287,159.76, 396,280.49 and 159,832.62
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Solution
The fourth proportional to 287,159.76, 396,280.49 and 159,832.62 is: 220,569.02
Step by Step Solution
- Step 1: Write the proportion equation
287,159.76 : 396,280.49 = 159,832.62 : x - Step 2: Convert to fraction form
287,159.76/396,280.49 = 159,832.62/x - Step 3: Cross multiply
287,159.76x = 396,280.49 × 159,832.62 - Step 4: Simplify right side
287,159.76x = 63,338,548,172.42 - Step 5: Solve for x
x = 63,338,548,172.42/287,159.76 - Step 6: Final answer
x = 220,569.02
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1.5x scale
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.