Finding the Fourth Proportional to 611.99, 918.03 and 201.12
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Solution
The fourth proportional to 611.99, 918.03 and 201.12 is: 301.70
Step by Step Solution
- Step 1: Write the proportion equation
611.99 : 918.03 = 201.12 : x - Step 2: Convert to fraction form
611.99/918.03 = 201.12/x - Step 3: Cross multiply
611.99x = 918.03 × 201.12 - Step 4: Simplify right side
611.99x = 184,634.19 - Step 5: Solve for x
x = 184,634.19/611.99 - Step 6: Final answer
x = 301.70
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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.