Finding the Fourth Proportional to 149.70, 224.44 and 68.44
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Solution
The fourth proportional to 149.70, 224.44 and 68.44 is: 102.61
Step by Step Solution
- Step 1: Write the proportion equation
149.70 : 224.44 = 68.44 : x - Step 2: Convert to fraction form
149.70/224.44 = 68.44/x - Step 3: Cross multiply
149.70x = 224.44 × 68.44 - Step 4: Simplify right side
149.70x = 15,360.67 - Step 5: Solve for x
x = 15,360.67/149.70 - Step 6: Final answer
x = 102.61
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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.