Finding the Fourth Proportional to 393.26, 589.19 and 207.93
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Solution
The fourth proportional to 393.26, 589.19 and 207.93 is: 311.52
Step by Step Solution
- Step 1: Write the proportion equation
393.26 : 589.19 = 207.93 : x - Step 2: Convert to fraction form
393.26/589.19 = 207.93/x - Step 3: Cross multiply
393.26x = 589.19 × 207.93 - Step 4: Simplify right side
393.26x = 122,510.28 - Step 5: Solve for x
x = 122,510.28/393.26 - Step 6: Final answer
x = 311.52
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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.