Finding the Fourth Proportional to 155.17, 232.74 and 73.99
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Solution
The fourth proportional to 155.17, 232.74 and 73.99 is: 110.98
Step by Step Solution
- Step 1: Write the proportion equation
155.17 : 232.74 = 73.99 : x - Step 2: Convert to fraction form
155.17/232.74 = 73.99/x - Step 3: Cross multiply
155.17x = 232.74 × 73.99 - Step 4: Simplify right side
155.17x = 17,220.43 - Step 5: Solve for x
x = 17,220.43/155.17 - Step 6: Final answer
x = 110.98
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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.