Finding the Fourth Proportional to 387.96, 582.14 and 192.99
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Solution
The fourth proportional to 387.96, 582.14 and 192.99 is: 289.58
Step by Step Solution
- Step 1: Write the proportion equation
387.96 : 582.14 = 192.99 : x - Step 2: Convert to fraction form
387.96/582.14 = 192.99/x - Step 3: Cross multiply
387.96x = 582.14 × 192.99 - Step 4: Simplify right side
387.96x = 112,346.23 - Step 5: Solve for x
x = 112,346.23/387.96 - Step 6: Final answer
x = 289.58
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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.