Finding the Fourth Proportional to 268,907.52, 403,449.60 and 135,724.80
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Solution
The fourth proportional to 268,907.52, 403,449.60 and 135,724.80 is: 203,631.78
Step by Step Solution
- Step 1: Write the proportion equation
268,907.52 : 403,449.60 = 135,724.80 : x - Step 2: Convert to fraction form
268,907.52/403,449.60 = 135,724.80/x - Step 3: Cross multiply
268,907.52x = 403,449.60 × 135,724.80 - Step 4: Simplify right side
268,907.52x = 54,758,116,270.08 - Step 5: Solve for x
x = 54,758,116,270.08/268,907.52 - Step 6: Final answer
x = 203,631.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.