Finding the Fourth Proportional to 334.19, 501.30 and 128.99
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Solution
The fourth proportional to 334.19, 501.30 and 128.99 is: 193.49
Step by Step Solution
- Step 1: Write the proportion equation
334.19 : 501.30 = 128.99 : x - Step 2: Convert to fraction form
334.19/501.30 = 128.99/x - Step 3: Cross multiply
334.19x = 501.30 × 128.99 - Step 4: Simplify right side
334.19x = 64,660.18 - Step 5: Solve for x
x = 64,660.18/334.19 - Step 6: Final answer
x = 193.49
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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.