Finding the Fourth Proportional to 558.70, 838.11 and 193.75
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Solution
The fourth proportional to 558.70, 838.11 and 193.75 is: 290.65
Step by Step Solution
- Step 1: Write the proportion equation
558.70 : 838.11 = 193.75 : x - Step 2: Convert to fraction form
558.70/838.11 = 193.75/x - Step 3: Cross multiply
558.70x = 838.11 × 193.75 - Step 4: Simplify right side
558.70x = 162,383.81 - Step 5: Solve for x
x = 162,383.81/558.70 - Step 6: Final answer
x = 290.65
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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.