Finding the Fourth Proportional to 161.19, 241.79 and 52.99
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Solution
The fourth proportional to 161.19, 241.79 and 52.99 is: 79.49
Step by Step Solution
- Step 1: Write the proportion equation
161.19 : 241.79 = 52.99 : x - Step 2: Convert to fraction form
161.19/241.79 = 52.99/x - Step 3: Cross multiply
161.19x = 241.79 × 52.99 - Step 4: Simplify right side
161.19x = 12,812.45 - Step 5: Solve for x
x = 12,812.45/161.19 - Step 6: Final answer
x = 79.49
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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.