Finding the Fourth Proportional to 293.36, 440.01 and 128.99
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Solution
The fourth proportional to 293.36, 440.01 and 128.99 is: 193.47
Step by Step Solution
- Step 1: Write the proportion equation
293.36 : 440.01 = 128.99 : x - Step 2: Convert to fraction form
293.36/440.01 = 128.99/x - Step 3: Cross multiply
293.36x = 440.01 × 128.99 - Step 4: Simplify right side
293.36x = 56,754.69 - Step 5: Solve for x
x = 56,754.69/293.36 - Step 6: Final answer
x = 193.47
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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.