Finding the Fourth Proportional to 228.36, 342.58 and 98.44
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Solution
The fourth proportional to 228.36, 342.58 and 98.44 is: 147.68
Step by Step Solution
- Step 1: Write the proportion equation
228.36 : 342.58 = 98.44 : x - Step 2: Convert to fraction form
228.36/342.58 = 98.44/x - Step 3: Cross multiply
228.36x = 342.58 × 98.44 - Step 4: Simplify right side
228.36x = 33,723.58 - Step 5: Solve for x
x = 33,723.58/228.36 - Step 6: Final answer
x = 147.68
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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.