Finding the Fourth Proportional to 235.19, 324.58 and 136.95
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Solution
The fourth proportional to 235.19, 324.58 and 136.95 is: 189.00
Step by Step Solution
- Step 1: Write the proportion equation
235.19 : 324.58 = 136.95 : x - Step 2: Convert to fraction form
235.19/324.58 = 136.95/x - Step 3: Cross multiply
235.19x = 324.58 × 136.95 - Step 4: Simplify right side
235.19x = 44,449.73 - Step 5: Solve for x
x = 44,449.73/235.19 - Step 6: Final answer
x = 189.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.