Finding the Fourth Proportional to 393.23, 590.23 and 210.75
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Solution
The fourth proportional to 393.23, 590.23 and 210.75 is: 316.33
Step by Step Solution
- Step 1: Write the proportion equation
393.23 : 590.23 = 210.75 : x - Step 2: Convert to fraction form
393.23/590.23 = 210.75/x - Step 3: Cross multiply
393.23x = 590.23 × 210.75 - Step 4: Simplify right side
393.23x = 124,390.97 - Step 5: Solve for x
x = 124,390.97/393.23 - Step 6: Final answer
x = 316.33
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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.