Finding the Fourth Proportional to 388.96, 583.81 and 242.99
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Solution
The fourth proportional to 388.96, 583.81 and 242.99 is: 364.72
Step by Step Solution
- Step 1: Write the proportion equation
388.96 : 583.81 = 242.99 : x - Step 2: Convert to fraction form
388.96/583.81 = 242.99/x - Step 3: Cross multiply
388.96x = 583.81 × 242.99 - Step 4: Simplify right side
388.96x = 141,859.99 - Step 5: Solve for x
x = 141,859.99/388.96 - Step 6: Final answer
x = 364.72
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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.