Finding the Fourth Proportional to 149.97, 224.99 and 52.49
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Solution
The fourth proportional to 149.97, 224.99 and 52.49 is: 78.75
Step by Step Solution
- Step 1: Write the proportion equation
149.97 : 224.99 = 52.49 : x - Step 2: Convert to fraction form
149.97/224.99 = 52.49/x - Step 3: Cross multiply
149.97x = 224.99 × 52.49 - Step 4: Simplify right side
149.97x = 11,810.22 - Step 5: Solve for x
x = 11,810.22/149.97 - Step 6: Final answer
x = 78.75
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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.