Finding the Fourth Proportional to 144.23, 216.02 and 70.99
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Solution
The fourth proportional to 144.23, 216.02 and 70.99 is: 106.33
Step by Step Solution
- Step 1: Write the proportion equation
144.23 : 216.02 = 70.99 : x - Step 2: Convert to fraction form
144.23/216.02 = 70.99/x - Step 3: Cross multiply
144.23x = 216.02 × 70.99 - Step 4: Simplify right side
144.23x = 15,335.26 - Step 5: Solve for x
x = 15,335.26/144.23 - Step 6: Final answer
x = 106.33
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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.