Finding the Fourth Proportional to 147.05, 219.27 and 137.12
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Solution
The fourth proportional to 147.05, 219.27 and 137.12 is: 204.46
Step by Step Solution
- Step 1: Write the proportion equation
147.05 : 219.27 = 137.12 : x - Step 2: Convert to fraction form
147.05/219.27 = 137.12/x - Step 3: Cross multiply
147.05x = 219.27 × 137.12 - Step 4: Simplify right side
147.05x = 30,066.30 - Step 5: Solve for x
x = 30,066.30/147.05 - Step 6: Final answer
x = 204.46
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.