Finding the Fourth Proportional to 147.08, 203.11 and 122.23
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Solution
The fourth proportional to 147.08, 203.11 and 122.23 is: 168.78
Step by Step Solution
- Step 1: Write the proportion equation
147.08 : 203.11 = 122.23 : x - Step 2: Convert to fraction form
147.08/203.11 = 122.23/x - Step 3: Cross multiply
147.08x = 203.11 × 122.23 - Step 4: Simplify right side
147.08x = 24,824.94 - Step 5: Solve for x
x = 24,824.94/147.08 - Step 6: Final answer
x = 168.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.