Finding the Fourth Proportional to 268,200.12, 402,352.08 and 90,736.08
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Solution
The fourth proportional to 268,200.12, 402,352.08 and 90,736.08 is: 136,121.68
Step by Step Solution
- Step 1: Write the proportion equation
268,200.12 : 402,352.08 = 90,736.08 : x - Step 2: Convert to fraction form
268,200.12/402,352.08 = 90,736.08/x - Step 3: Cross multiply
268,200.12x = 402,352.08 × 90,736.08 - Step 4: Simplify right side
268,200.12x = 36,507,850,519.05 - Step 5: Solve for x
x = 36,507,850,519.05/268,200.12 - Step 6: Final answer
x = 136,121.68
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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.