Finding the Fourth Proportional to 207.09, 310.30 and 149.23
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Solution
The fourth proportional to 207.09, 310.30 and 149.23 is: 223.60
Step by Step Solution
- Step 1: Write the proportion equation
207.09 : 310.30 = 149.23 : x - Step 2: Convert to fraction form
207.09/310.30 = 149.23/x - Step 3: Cross multiply
207.09x = 310.30 × 149.23 - Step 4: Simplify right side
207.09x = 46,306.07 - Step 5: Solve for x
x = 46,306.07/207.09 - Step 6: Final answer
x = 223.60
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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.