Finding the Fourth Proportional to 207.95, 312.08 and 153.99
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Solution
The fourth proportional to 207.95, 312.08 and 153.99 is: 231.10
Step by Step Solution
- Step 1: Write the proportion equation
207.95 : 312.08 = 153.99 : x - Step 2: Convert to fraction form
207.95/312.08 = 153.99/x - Step 3: Cross multiply
207.95x = 312.08 × 153.99 - Step 4: Simplify right side
207.95x = 48,057.20 - Step 5: Solve for x
x = 48,057.20/207.95 - Step 6: Final answer
x = 231.10
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.