Finding the Fourth Proportional to 392.99, 589.55 and 149.49
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Solution
The fourth proportional to 392.99, 589.55 and 149.49 is: 224.26
Step by Step Solution
- Step 1: Write the proportion equation
392.99 : 589.55 = 149.49 : x - Step 2: Convert to fraction form
392.99/589.55 = 149.49/x - Step 3: Cross multiply
392.99x = 589.55 × 149.49 - Step 4: Simplify right side
392.99x = 88,131.08 - Step 5: Solve for x
x = 88,131.08/392.99 - Step 6: Final answer
x = 224.26
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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.