Finding the Fourth Proportional to 228.97, 343.55 and 98.99
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Solution
The fourth proportional to 228.97, 343.55 and 98.99 is: 148.53
Step by Step Solution
- Step 1: Write the proportion equation
228.97 : 343.55 = 98.99 : x - Step 2: Convert to fraction form
228.97/343.55 = 98.99/x - Step 3: Cross multiply
228.97x = 343.55 × 98.99 - Step 4: Simplify right side
228.97x = 34,008.01 - Step 5: Solve for x
x = 34,008.01/228.97 - Step 6: Final answer
x = 148.53
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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.