Finding the Fourth Proportional to 395.99, 592.79 and 272.33
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Solution
The fourth proportional to 395.99, 592.79 and 272.33 is: 407.67
Step by Step Solution
- Step 1: Write the proportion equation
395.99 : 592.79 = 272.33 : x - Step 2: Convert to fraction form
395.99/592.79 = 272.33/x - Step 3: Cross multiply
395.99x = 592.79 × 272.33 - Step 4: Simplify right side
395.99x = 161,430.18 - Step 5: Solve for x
x = 161,430.18/395.99 - Step 6: Final answer
x = 407.67
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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.