Finding the Fourth Proportional to 203.73, 305.58 and 135.68
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Solution
The fourth proportional to 203.73, 305.58 and 135.68 is: 203.50
Step by Step Solution
- Step 1: Write the proportion equation
203.73 : 305.58 = 135.68 : x - Step 2: Convert to fraction form
203.73/305.58 = 135.68/x - Step 3: Cross multiply
203.73x = 305.58 × 135.68 - Step 4: Simplify right side
203.73x = 41,459.57 - Step 5: Solve for x
x = 41,459.57/203.73 - Step 6: Final answer
x = 203.50
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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.