Finding the Fourth Proportional to 207.84, 312.99 and 181.11
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Solution
The fourth proportional to 207.84, 312.99 and 181.11 is: 272.74
Step by Step Solution
- Step 1: Write the proportion equation
207.84 : 312.99 = 181.11 : x - Step 2: Convert to fraction form
207.84/312.99 = 181.11/x - Step 3: Cross multiply
207.84x = 312.99 × 181.11 - Step 4: Simplify right side
207.84x = 56,685.62 - Step 5: Solve for x
x = 56,685.62/207.84 - Step 6: Final answer
x = 272.74
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.