Finding the Fourth Proportional to 375.99, 564.01 and 129.09
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Solution
The fourth proportional to 375.99, 564.01 and 129.09 is: 193.65
Step by Step Solution
- Step 1: Write the proportion equation
375.99 : 564.01 = 129.09 : x - Step 2: Convert to fraction form
375.99/564.01 = 129.09/x - Step 3: Cross multiply
375.99x = 564.01 × 129.09 - Step 4: Simplify right side
375.99x = 72,810.08 - Step 5: Solve for x
x = 72,810.08/375.99 - Step 6: Final answer
x = 193.65
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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.