Finding the Fourth Proportional to 392.97, 589.52 and 132.99
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Solution
The fourth proportional to 392.97, 589.52 and 132.99 is: 199.51
Step by Step Solution
- Step 1: Write the proportion equation
392.97 : 589.52 = 132.99 : x - Step 2: Convert to fraction form
392.97/589.52 = 132.99/x - Step 3: Cross multiply
392.97x = 589.52 × 132.99 - Step 4: Simplify right side
392.97x = 78,400.26 - Step 5: Solve for x
x = 78,400.26/392.97 - Step 6: Final answer
x = 199.51
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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.