Finding the Fourth Proportional to 611.52, 917.10 and 226.68
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Solution
The fourth proportional to 611.52, 917.10 and 226.68 is: 339.95
Step by Step Solution
- Step 1: Write the proportion equation
611.52 : 917.10 = 226.68 : x - Step 2: Convert to fraction form
611.52/917.10 = 226.68/x - Step 3: Cross multiply
611.52x = 917.10 × 226.68 - Step 4: Simplify right side
611.52x = 207,888.23 - Step 5: Solve for x
x = 207,888.23/611.52 - Step 6: Final answer
x = 339.95
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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.