Finding the Fourth Proportional to 225.99, 338.99 and 117.72
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Solution
The fourth proportional to 225.99, 338.99 and 117.72 is: 176.58
Step by Step Solution
- Step 1: Write the proportion equation
225.99 : 338.99 = 117.72 : x - Step 2: Convert to fraction form
225.99/338.99 = 117.72/x - Step 3: Cross multiply
225.99x = 338.99 × 117.72 - Step 4: Simplify right side
225.99x = 39,905.31 - Step 5: Solve for x
x = 39,905.31/225.99 - Step 6: Final answer
x = 176.58
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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.