Finding the Fourth Proportional to 206.99, 285.62 and 124.08
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Solution
The fourth proportional to 206.99, 285.62 and 124.08 is: 171.21
Step by Step Solution
- Step 1: Write the proportion equation
206.99 : 285.62 = 124.08 : x - Step 2: Convert to fraction form
206.99/285.62 = 124.08/x - Step 3: Cross multiply
206.99x = 285.62 × 124.08 - Step 4: Simplify right side
206.99x = 35,438.04 - Step 5: Solve for x
x = 35,438.04/206.99 - Step 6: Final answer
x = 171.21
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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.