Finding the Fourth Proportional to 149.18, 223.74 and 63.68
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Solution
The fourth proportional to 149.18, 223.74 and 63.68 is: 95.50
Step by Step Solution
- Step 1: Write the proportion equation
149.18 : 223.74 = 63.68 : x - Step 2: Convert to fraction form
149.18/223.74 = 63.68/x - Step 3: Cross multiply
149.18x = 223.74 × 63.68 - Step 4: Simplify right side
149.18x = 14,246.64 - Step 5: Solve for x
x = 14,246.64/149.18 - Step 6: Final answer
x = 95.50
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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.