Finding the Fourth Proportional to 164.99, 247.21 and 107.15
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Solution
The fourth proportional to 164.99, 247.21 and 107.15 is: 160.53
Step by Step Solution
- Step 1: Write the proportion equation
164.99 : 247.21 = 107.15 : x - Step 2: Convert to fraction form
164.99/247.21 = 107.15/x - Step 3: Cross multiply
164.99x = 247.21 × 107.15 - Step 4: Simplify right side
164.99x = 26,487.05 - Step 5: Solve for x
x = 26,487.05/164.99 - Step 6: Final answer
x = 160.53
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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.