Finding the Fourth Proportional to 203.93, 305.88 and 66.97
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Solution
The fourth proportional to 203.93, 305.88 and 66.97 is: 100.45
Step by Step Solution
- Step 1: Write the proportion equation
203.93 : 305.88 = 66.97 : x - Step 2: Convert to fraction form
203.93/305.88 = 66.97/x - Step 3: Cross multiply
203.93x = 305.88 × 66.97 - Step 4: Simplify right side
203.93x = 20,484.91 - Step 5: Solve for x
x = 20,484.91/203.93 - Step 6: Final answer
x = 100.45
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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.