Finding the Fourth Proportional to 203.67, 305.45 and 116.99
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Solution
The fourth proportional to 203.67, 305.45 and 116.99 is: 175.45
Step by Step Solution
- Step 1: Write the proportion equation
203.67 : 305.45 = 116.99 : x - Step 2: Convert to fraction form
203.67/305.45 = 116.99/x - Step 3: Cross multiply
203.67x = 305.45 × 116.99 - Step 4: Simplify right side
203.67x = 35,733.63 - Step 5: Solve for x
x = 35,733.63/203.67 - Step 6: Final answer
x = 175.45
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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.