Finding the Fourth Proportional to 207.84, 312 and 122.52
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Solution
The fourth proportional to 207.84, 312 and 122.52 is: 183.92
Step by Step Solution
- Step 1: Write the proportion equation
207.84 : 312 = 122.52 : x - Step 2: Convert to fraction form
207.84/312 = 122.52/x - Step 3: Cross multiply
207.84x = 312 × 122.52 - Step 4: Simplify right side
207.84x = 38,226.24 - Step 5: Solve for x
x = 38,226.24/207.84 - Step 6: Final answer
x = 183.92
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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.