Finding the Fourth Proportional to 381.44, 572.36 and 164.99
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Solution
The fourth proportional to 381.44, 572.36 and 164.99 is: 247.57
Step by Step Solution
- Step 1: Write the proportion equation
381.44 : 572.36 = 164.99 : x - Step 2: Convert to fraction form
381.44/572.36 = 164.99/x - Step 3: Cross multiply
381.44x = 572.36 × 164.99 - Step 4: Simplify right side
381.44x = 94,433.68 - Step 5: Solve for x
x = 94,433.68/381.44 - Step 6: Final answer
x = 247.57
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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.