Finding the Fourth Proportional to 372.75, 514.40 and 206.99
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Solution
The fourth proportional to 372.75, 514.40 and 206.99 is: 285.65
Step by Step Solution
- Step 1: Write the proportion equation
372.75 : 514.40 = 206.99 : x - Step 2: Convert to fraction form
372.75/514.40 = 206.99/x - Step 3: Cross multiply
372.75x = 514.40 × 206.99 - Step 4: Simplify right side
372.75x = 106,474.62 - Step 5: Solve for x
x = 106,474.62/372.75 - Step 6: Final answer
x = 285.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.