Finding the Fourth Proportional to 228.23, 342.44 and 136.99
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Solution
The fourth proportional to 228.23, 342.44 and 136.99 is: 205.54
Step by Step Solution
- Step 1: Write the proportion equation
228.23 : 342.44 = 136.99 : x - Step 2: Convert to fraction form
228.23/342.44 = 136.99/x - Step 3: Cross multiply
228.23x = 342.44 × 136.99 - Step 4: Simplify right side
228.23x = 46,911.24 - Step 5: Solve for x
x = 46,911.24/228.23 - Step 6: Final answer
x = 205.54
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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.