Finding the Fourth Proportional to 342.11, 513.15 and 110.99
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Solution
The fourth proportional to 342.11, 513.15 and 110.99 is: 166.48
Step by Step Solution
- Step 1: Write the proportion equation
342.11 : 513.15 = 110.99 : x - Step 2: Convert to fraction form
342.11/513.15 = 110.99/x - Step 3: Cross multiply
342.11x = 513.15 × 110.99 - Step 4: Simplify right side
342.11x = 56,954.52 - Step 5: Solve for x
x = 56,954.52/342.11 - Step 6: Final answer
x = 166.48
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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.