Finding the Fourth Proportional to 160.19, 240.21 and 79.00
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Solution
The fourth proportional to 160.19, 240.21 and 79.00 is: 118.46
Step by Step Solution
- Step 1: Write the proportion equation
160.19 : 240.21 = 79.00 : x - Step 2: Convert to fraction form
160.19/240.21 = 79.00/x - Step 3: Cross multiply
160.19x = 240.21 × 79.00 - Step 4: Simplify right side
160.19x = 18,975.99 - Step 5: Solve for x
x = 18,975.99/160.19 - Step 6: Final answer
x = 118.46
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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.