Finding the Fourth Proportional to 225.19, 337.74 and 80.91
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Solution
The fourth proportional to 225.19, 337.74 and 80.91 is: 121.35
Step by Step Solution
- Step 1: Write the proportion equation
225.19 : 337.74 = 80.91 : x - Step 2: Convert to fraction form
225.19/337.74 = 80.91/x - Step 3: Cross multiply
225.19x = 337.74 × 80.91 - Step 4: Simplify right side
225.19x = 27,326.24 - Step 5: Solve for x
x = 27,326.24/225.19 - Step 6: Final answer
x = 121.35
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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.